chore(web/udt-011): grep final confirma 0 anti-patterns en src/web/src fuera de dateFormat.ts

Fix all test compilation errors caused by T400.10/T400.20/T400.30:
- Handler constructors: add TimeProvider.System as last argument
- Domain mutator calls: add DateTime.UtcNow as explicit 'now' argument
- AuditLogger/SecurityEventLogger Build() helpers: add TimeProvider.System
- JwtService test constructors: add TimeProvider.System
Cat2 coverage already present in TimeProviderArgentinaExtensionsTests.cs:
FakeTimeProvider proves GetArgentinaToday() returns ART civil date, not UTC.

src/api/SIGCM2.Infrastructure/Audit/AuditLogger.cs

@@ -12,15 +12,18 @@ public sealed class AuditLogger : IAuditLogger
     private readonly IAuditContext _context;
     private readonly IAuditEventRepository _repo;
     private readonly IOptions<AuditOptions> _options;
+    private readonly TimeProvider _timeProvider;
 
     public AuditLogger(
         IAuditContext context,
         IAuditEventRepository repo,
-        IOptions<AuditOptions> options)
+        IOptions<AuditOptions> options,
+        TimeProvider timeProvider)
     {
         _context = context;
         _repo = repo;
         _options = options;
+        _timeProvider = timeProvider;
     }
 
     public async Task LogAsync(
@@ -42,7 +45,7 @@ public sealed class AuditLogger : IAuditLogger
             : _context.CorrelationId;
 
         await _repo.InsertAsync(
-            occurredAt: DateTime.UtcNow,
+            occurredAt: _timeProvider.GetUtcNow().UtcDateTime,
             actorUserId: _context.ActorUserId,
             actorRoleId: _context.ActorRoleId,
             action: action,

src/api/SIGCM2.Infrastructure/Audit/SecurityEventLogger.cs

@@ -11,15 +11,18 @@ public sealed class SecurityEventLogger : ISecurityEventLogger
     private readonly ISecurityEventRepository _repo;
     private readonly IAuditContext _context;
     private readonly IOptions<AuditOptions> _options;
+    private readonly TimeProvider _timeProvider;
 
     public SecurityEventLogger(
         ISecurityEventRepository repo,
         IAuditContext context,
-        IOptions<AuditOptions> options)
+        IOptions<AuditOptions> options,
+        TimeProvider timeProvider)
     {
         _repo = repo;
         _context = context;
         _options = options;
+        _timeProvider = timeProvider;
     }
 
     public async Task LogAsync(
@@ -37,7 +40,7 @@ public sealed class SecurityEventLogger : ISecurityEventLogger
             : JsonSanitizer.Sanitize(metadata, _options.Value.SanitizedKeys);
 
         await _repo.InsertAsync(
-            occurredAt: DateTime.UtcNow,
+            occurredAt: _timeProvider.GetUtcNow().UtcDateTime,
             actorUserId: actorUserId,
             attemptedUsername: attemptedUsername,
             sessionId: sessionId,

src/api/SIGCM2.Infrastructure/DependencyInjection.cs

@@ -68,7 +68,10 @@ public static class DependencyInjection
         });
 
         services.AddScoped<IJwtService>(sp =>
-            new JwtService(sp.GetRequiredService<RSA>(), sp.GetRequiredService<JwtOptions>()));
+            new JwtService(
+                sp.GetRequiredService<RSA>(),
+                sp.GetRequiredService<JwtOptions>(),
+                sp.GetRequiredService<TimeProvider>()));
         services.AddScoped<IPasswordHasher, BcryptPasswordHasher>();
         services.AddSingleton<IRefreshTokenGenerator, RefreshTokenGenerator>();
         services.AddHttpContextAccessor();

src/api/SIGCM2.Infrastructure/Persistence/MedioRepository.cs

@@ -85,7 +85,7 @@ public sealed class MedioRepository : IMedioRepository
             Tipo = (int)m.Tipo,
             m.PlataformaEmpresaId,
             m.Activo,
-            FechaModificacion = m.FechaModificacion ?? DateTime.UtcNow,
+            FechaModificacion = m.FechaModificacion,
             m.Id,
         });
     }

src/api/SIGCM2.Infrastructure/Persistence/PuntoDeVentaRepository.cs

@@ -96,7 +96,7 @@ public sealed class PuntoDeVentaRepository : IPuntoDeVentaRepository
                 pdv.Nombre,
                 pdv.Descripcion,
                 pdv.Activo,
-                FechaModificacion = pdv.FechaModificacion ?? DateTime.UtcNow,
+                FechaModificacion = pdv.FechaModificacion,
                 pdv.Id,
             });
         }

src/api/SIGCM2.Infrastructure/Persistence/SeccionRepository.cs

@@ -84,7 +84,7 @@ public sealed class SeccionRepository : ISeccionRepository
             s.Nombre,
             s.Tipo,
             s.Activo,
-            FechaModificacion = s.FechaModificacion ?? DateTime.UtcNow,
+            FechaModificacion = s.FechaModificacion,
             s.Id,
         });
     }

src/api/SIGCM2.Infrastructure/Security/JwtService.cs

@@ -11,11 +11,13 @@ public sealed class JwtService : IJwtService
 {
     private readonly RSA _rsa;
     private readonly JwtOptions _options;
+    private readonly TimeProvider _timeProvider;
 
-    public JwtService(RSA rsa, JwtOptions options)
+    public JwtService(RSA rsa, JwtOptions options, TimeProvider timeProvider)
     {
         _rsa = rsa;
         _options = options;
+        _timeProvider = timeProvider;
     }
 
     /// <inheritdoc/>
@@ -62,7 +64,7 @@ public sealed class JwtService : IJwtService
             new("rol", usuario.Rol),
         };
 
-        var now = DateTime.UtcNow;
+        var now = _timeProvider.GetUtcNow().UtcDateTime;
         var descriptor = new SecurityTokenDescriptor
         {
             Subject = new ClaimsIdentity(claims),

src/web/src/features/fiscal/iibb/components/IngresosBrutosFormModal.tsx

@@ -2,6 +2,7 @@
 // Modal de edición / creación de IngresosBrutos
 // CRÍTICO: NO incluye campo Alícuota en modo edit (inmutable, cambiar via NuevaVersion)
 import { useEffect } from 'react'
+import { todayArgentina } from '@/lib/dateFormat'
 import { useForm } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import { z } from 'zod'
@@ -96,7 +97,7 @@ export function IngresosBrutosFormModal({
       descripcion: '',
       activo: true,
       alicuotaCreate: undefined,
-      vigenciaDesde: '',
+      vigenciaDesde: todayArgentina(),
     },
   })
 
@@ -115,7 +116,7 @@ export function IngresosBrutosFormModal({
         descripcion: '',
         activo: true,
         alicuotaCreate: undefined,
-        vigenciaDesde: '',
+        vigenciaDesde: todayArgentina(),
       })
     }
     createMutation.reset()
@@ -152,7 +153,7 @@ export function IngresosBrutosFormModal({
           provincia: values.provincia as ProvinciaArgentina,
           descripcion: values.descripcion,
           alicuota: values.alicuotaCreate,
-          vigenciaDesde: values.vigenciaDesde ?? new Date().toISOString().slice(0, 10),
+          vigenciaDesde: values.vigenciaDesde ?? todayArgentina(),
         },
         {
           onSuccess: () => {

src/web/src/features/fiscal/iibb/components/NuevaVigenciaIibbModal.tsx

@@ -27,6 +27,7 @@ import {
 import { useNuevaVersionIngresosBrutos } from '../hooks/useIngresosBrutos'
 import type { IngresosBrutos } from '../types/ingresosBrutos.types'
 import { toast } from 'sonner'
+import { prevCivilDate, formatCivilDate } from '@/lib/dateFormat'
 
 const formSchema = z.object({
   alicuota: z.coerce
@@ -48,11 +49,12 @@ interface NuevaVigenciaIibbModalProps {
   onSuccess: () => void
 }
 
-function fechaCierre(vigenciaDesde: string): string {
+/** Formatea la fecha de cierre (vigenciaDesde - 1 día) para display "dd/MM/yyyy".
+ *  Usa prevCivilDate (Date.UTC pura, sin TZ) + formatCivilDate (split manual).
+ */
+function fechaCierreDisplay(vigenciaDesde: string): string {
   if (!vigenciaDesde || !/^\d{4}-\d{2}-\d{2}$/.test(vigenciaDesde)) return '—'
-  const d = new Date(vigenciaDesde + 'T00:00:00')
-  d.setDate(d.getDate() - 1)
-  return d.toISOString().slice(0, 10)
+  return formatCivilDate(prevCivilDate(vigenciaDesde))
 }
 
 function resolveBackendError(err: unknown): string | null {
@@ -212,7 +214,7 @@ export function NuevaVigenciaIibbModal({
                 </p>
                 <p className="text-muted-foreground">
                   Versión actual ({item.alicuota}%) quedará cerrada el{' '}
-                  <strong>{fechaCierre(watchedVigencia)}</strong>.
+                  <strong>{fechaCierreDisplay(watchedVigencia)}</strong>.
                 </p>
                 <p className="text-xs text-muted-foreground font-medium">
                   Esta acción no se puede deshacer.

src/web/src/features/fiscal/iva/components/NuevaVigenciaModal.tsx

@@ -28,6 +28,7 @@ import {
 import { useNuevaVersionTipoDeIva } from '../hooks/useTiposDeIva'
 import type { TipoDeIva } from '../types/tipoDeIva.types'
 import { toast } from 'sonner'
+import { prevCivilDate, formatCivilDate } from '@/lib/dateFormat'
 
 const formSchema = z.object({
   porcentaje: z.coerce
@@ -49,12 +50,12 @@ interface NuevaVigenciaModalProps {
   onSuccess: () => void
 }
 
-/** Devuelve la fecha anterior (vigenciaDesde - 1 día) como string "yyyy-MM-dd" */
-function fechaCierre(vigenciaDesde: string): string {
+/** Formatea la fecha de cierre (vigenciaDesde - 1 día) para display "dd/MM/yyyy".
+ *  Usa prevCivilDate (Date.UTC pura, sin TZ) + formatCivilDate (split manual).
+ */
+function fechaCierreDisplay(vigenciaDesde: string): string {
   if (!vigenciaDesde || !/^\d{4}-\d{2}-\d{2}$/.test(vigenciaDesde)) return '—'
-  const d = new Date(vigenciaDesde + 'T00:00:00')
-  d.setDate(d.getDate() - 1)
-  return d.toISOString().slice(0, 10)
+  return formatCivilDate(prevCivilDate(vigenciaDesde))
 }
 
 function resolveBackendError(err: unknown): string | null {
@@ -218,7 +219,7 @@ export function NuevaVigenciaModal({
                 </p>
                 <p className="text-muted-foreground">
                   Versión actual ({item.porcentaje}%) quedará cerrada el{' '}
-                  <strong>{fechaCierre(watchedVigencia)}</strong>.
+                  <strong>{fechaCierreDisplay(watchedVigencia)}</strong>.
                 </p>
                 <p className="text-xs text-muted-foreground font-medium">
                   Esta acción no se puede deshacer.

src/web/src/features/fiscal/iva/components/TipoDeIvaFormModal.tsx

@@ -2,6 +2,7 @@
 // Modal de edición / creación de TipoDeIva
 // CRÍTICO: NO incluye campo Porcentaje (inmutable, cambiar via NuevaVersion)
 import { useEffect } from 'react'
+import { todayArgentina } from '@/lib/dateFormat'
 import { useForm } from 'react-hook-form'
 import { zodResolver } from '@hookform/resolvers/zod'
 import { z } from 'zod'
@@ -98,7 +99,7 @@ export function TipoDeIvaFormModal({
       aplicaIVA: true,
       activo: true,
       porcentajeCreate: undefined,
-      vigenciaDesde: '',
+      vigenciaDesde: todayArgentina(),
     },
   })
 
@@ -119,7 +120,7 @@ export function TipoDeIvaFormModal({
         aplicaIVA: true,
         activo: true,
         porcentajeCreate: undefined,
-        vigenciaDesde: '',
+        vigenciaDesde: todayArgentina(),
       })
     }
     createMutation.reset()
@@ -158,7 +159,7 @@ export function TipoDeIvaFormModal({
           codigo: values.codigo,
           descripcion: values.descripcion,
           porcentaje: values.porcentajeCreate,
-          vigenciaDesde: values.vigenciaDesde ?? new Date().toISOString().slice(0, 10),
+          vigenciaDesde: values.vigenciaDesde ?? todayArgentina(),
           aplicaIVA: values.aplicaIVA,
         },
         {

src/web/src/features/medios/pages/MedioDetailPage.tsx

@@ -5,15 +5,7 @@ import { CanPerform } from '@/components/auth/CanPerform'
 import { useMedio } from '../hooks/useMedio'
 import { DeactivateMedioModal } from '../components/DeactivateMedioModal'
 import { tipoMedioLabel } from '../tipoMedio'
-
-function formatDate(iso: string | null): string {
-  if (!iso) return '—'
-  return new Date(iso).toLocaleDateString('es-AR', {
-    year: 'numeric',
-    month: 'short',
-    day: 'numeric',
-  })
-}
+import { formatInstantOrDash } from '@/lib/dateFormat'
 
 export function MedioDetailPage() {
   const { id } = useParams<{ id: string }>()
@@ -69,11 +61,11 @@ export function MedioDetailPage() {
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Creado</span>
-          <span>{formatDate(medio.fechaCreacion)}</span>
+          <span>{formatInstantOrDash(medio.fechaCreacion)}</span>
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Modificado</span>
-          <span>{formatDate(medio.fechaModificacion)}</span>
+          <span>{formatInstantOrDash(medio.fechaModificacion)}</span>
         </div>
       </div>
 

src/web/src/features/puntos-de-venta/pages/PuntoDeVentaDetailPage.tsx

@@ -7,15 +7,7 @@ import { useMedio } from '../../medios/hooks/useMedio'
 import { DeactivatePuntoDeVentaModal } from '../components/DeactivatePuntoDeVentaModal'
 import { MedioInactivoBanner } from '../components/MedioInactivoBanner'
 import { PdvInactivoBanner } from '../components/PdvInactivoBanner'
-
-function formatDate(iso: string | null): string {
-  if (!iso) return '—'
-  return new Date(iso).toLocaleDateString('es-AR', {
-    year: 'numeric',
-    month: 'short',
-    day: 'numeric',
-  })
-}
+import { formatInstantOrDash } from '@/lib/dateFormat'
 
 export function PuntoDeVentaDetailPage() {
   const { id } = useParams<{ id: string }>()
@@ -70,11 +62,11 @@ export function PuntoDeVentaDetailPage() {
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Creado</span>
-          <span>{formatDate(pdv.fechaCreacion)}</span>
+          <span>{formatInstantOrDash(pdv.fechaCreacion)}</span>
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Modificado</span>
-          <span>{formatDate(pdv.fechaModificacion)}</span>
+          <span>{formatInstantOrDash(pdv.fechaModificacion)}</span>
         </div>
       </div>
 

src/web/src/features/secciones/pages/SeccionDetailPage.tsx

@@ -7,15 +7,7 @@ import { DeactivateSeccionModal } from '../components/DeactivateSeccionModal'
 import { MedioInactivoBanner } from '../components/MedioInactivoBanner'
 import { tipoSeccionLabel } from '../tipoSeccion'
 import { useMedio } from '../../medios/hooks/useMedio'
-
-function formatDate(iso: string | null): string {
-  if (!iso) return '—'
-  return new Date(iso).toLocaleDateString('es-AR', {
-    year: 'numeric',
-    month: 'short',
-    day: 'numeric',
-  })
-}
+import { formatInstantOrDash } from '@/lib/dateFormat'
 
 export function SeccionDetailPage() {
   const { id } = useParams<{ id: string }>()
@@ -75,11 +67,11 @@ export function SeccionDetailPage() {
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Creado</span>
-          <span>{formatDate(seccion.fechaCreacion)}</span>
+          <span>{formatInstantOrDash(seccion.fechaCreacion)}</span>
         </div>
         <div className="flex justify-between text-sm">
           <span className="text-muted-foreground">Modificado</span>
-          <span>{formatDate(seccion.fechaModificacion)}</span>
+          <span>{formatInstantOrDash(seccion.fechaModificacion)}</span>
         </div>
       </div>
 

src/web/src/features/users/components/UsersTable.tsx

@@ -3,21 +3,13 @@ import type { ColumnDef } from '@tanstack/react-table'
 import { Badge } from '@/components/ui/badge'
 import { DataTable } from '@/components/ui/data-table'
 import type { UserListItem } from '../types'
+import { formatInstantOrDash } from '@/lib/dateFormat'
 
 interface UsersTableProps {
   rows: UserListItem[]
   onRowClick: (user: UserListItem) => void
 }
 
-function formatDate(iso: string | null): string {
-  if (!iso) return '—'
-  return new Date(iso).toLocaleDateString('es-AR', {
-    year: 'numeric',
-    month: 'short',
-    day: 'numeric',
-  })
-}
-
 export function UsersTable({ rows, onRowClick }: UsersTableProps) {
   const columns = useMemo<ColumnDef<UserListItem>[]>(
     () => [
@@ -81,7 +73,7 @@ export function UsersTable({ rows, onRowClick }: UsersTableProps) {
         header: 'Último login',
         cell: ({ row }) => (
           <span className="text-muted-foreground">
-            {formatDate(row.original.ultimoLogin)}
+            {formatInstantOrDash(row.original.ultimoLogin)}
           </span>
         ),
         meta: { priority: 'low' },

src/web/src/lib/dateFormat.ts

@@ -0,0 +1,122 @@
+/**
+ * Localización temporal Argentina — utility centralizada.
+ * Ver: Obsidian/02-ARQUITECTURA-y-TECH-STACK/2.17 ⏰ Localización Temporal Argentina.md
+ * Engram topic_key: sig-cm2/conventions/fechas-timezones
+ *
+ * REGLAS PROHIBIDAS (no usar fuera de este módulo):
+ * - new Date(civilDateString) → aplica UTC, pierde días
+ * - toISOString().slice(0, 10) → UTC creep
+ * - toLocaleString('es-AR', {...}) sin timeZone → depende del navegador
+ */
+
+export const AR_TZ = 'America/Argentina/Buenos_Aires';
+
+type FormatStyle = 'short' | 'medium' | 'long' | 'full';
+
+interface FormatInstantOptions {
+    dateStyle?: FormatStyle;
+    timeStyle?: FormatStyle;
+}
+
+/**
+ * Formatea un instante UTC (Cat1) como string legible en zona horaria Argentina.
+ * Usa partes explícitas para garantizar año 4 dígitos y hora 24h independientemente del entorno.
+ * Output: "dd/MM/yyyy, HH:mm:ss"
+ */
+export function formatInstant(
+    iso: string,
+    _opts: FormatInstantOptions = { dateStyle: 'short', timeStyle: 'medium' }
+): string {
+    const parts = new Intl.DateTimeFormat('es-AR', {
+        timeZone: AR_TZ,
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+        hour: '2-digit',
+        minute: '2-digit',
+        second: '2-digit',
+        hour12: false,
+    }).formatToParts(new Date(iso));
+
+    const get = (type: string): string => parts.find(p => p.type === type)!.value;
+    return `${get('day')}/${get('month')}/${get('year')}, ${get('hour')}:${get('minute')}:${get('second')}`;
+}
+
+/**
+ * Formatea una fecha civil Argentina (Cat2, formato "yyyy-MM-dd") a "dd/MM/yyyy".
+ * Split manual — NO usa new Date() para evitar UTC creep.
+ */
+export function formatCivilDate(yyyyMmDd: string): string {
+    const [y, m, d] = yyyyMmDd.split('-');
+    return `${d}/${m}/${y}`;
+}
+
+/**
+ * Formatea un rango de fechas civiles Argentinas.
+ */
+export function formatCivilDateRange(from: string, to: string | null): string {
+    return to ? `${formatCivilDate(from)} → ${formatCivilDate(to)}` : `desde ${formatCivilDate(from)}`;
+}
+
+/**
+ * Retorna la fecha civil Argentina de hoy en formato "yyyy-MM-dd".
+ * Fix de BUG-FE-03: usa Intl.DateTimeFormat con timeZone, NO toISOString().slice(0, 10).
+ */
+export function todayArgentina(): string {
+    const now = new Date();
+    const parts = new Intl.DateTimeFormat('en-CA', {
+        timeZone: AR_TZ,
+        year: 'numeric',
+        month: '2-digit',
+        day: '2-digit',
+    }).formatToParts(now);
+
+    const y = parts.find(p => p.type === 'year')!.value;
+    const m = parts.find(p => p.type === 'month')!.value;
+    const d = parts.find(p => p.type === 'day')!.value;
+
+    return `${y}-${m}-${d}`;
+}
+
+/**
+ * Parsea una fecha civil Argentina ("yyyy-MM-dd") a partes numéricas.
+ * Split manual — NO usa new Date().
+ */
+export function parseCivilDate(yyyyMmDd: string): { year: number; month: number; day: number } {
+    const [y, m, d] = yyyyMmDd.split('-').map(Number);
+    return { year: y, month: m, day: d };
+}
+
+/**
+ * Formatea un instante UTC (Cat1) nullable a string legible en zona horaria Argentina.
+ * Retorna '—' cuando el valor es null o undefined.
+ */
+export function formatInstantOrDash(iso: string | null | undefined): string {
+    if (!iso) return '—';
+    return formatInstant(iso);
+}
+
+/**
+ * Retorna el día anterior a una fecha civil Argentina en formato "yyyy-MM-dd".
+ * Usa Date.UTC para aritmética pura — sin conversión de timezone en ningún momento.
+ * Output: "yyyy-MM-dd"
+ */
+export function prevCivilDate(yyyyMmDd: string): string {
+    const [y, m, d] = yyyyMmDd.split('-').map(Number);
+    const prevDay = new Date(Date.UTC(y, m - 1, d - 1));
+    const yy = prevDay.getUTCFullYear();
+    const mm = String(prevDay.getUTCMonth() + 1).padStart(2, '0');
+    const dd = String(prevDay.getUTCDate()).padStart(2, '0');
+    return `${yy}-${mm}-${dd}`;
+}
+
+/**
+ * Convierte un valor de <input type="datetime-local"> (ART implícito) a ISO UTC.
+ * Input: "2026-05-01T22:30" (sin TZ) → interpretado como ART → "2026-05-02T01:30:00.000Z".
+ *
+ * Útil para AuditFilters que envía filtros de rango al backend.
+ */
+export function parseArgentinaDateTimeToUtc(localDateTime: string): string {
+    // Parse "yyyy-MM-ddTHH:mm" como ART (offset -03:00) y convertir a ISO UTC
+    return new Date(`${localDateTime}:00-03:00`).toISOString();
+}

src/web/src/pages/admin/audit/AuditFilters.tsx

@@ -2,6 +2,7 @@ import { useState, type FormEvent } from 'react'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Button } from '@/components/ui/button'
+import { parseArgentinaDateTimeToUtc } from '@/lib/dateFormat'
 
 /** Filtros crudos del form (todos strings para binding directo del input). */
 export interface AuditFiltersValue {
@@ -132,8 +133,8 @@ export function AuditFilters({
  * que espera el cliente de API.
  *
  * - `actor` vacío o NaN → omitido
- * - `from`/`to` vienen del `datetime-local` (local time, sin timezone).
- *   Los convertimos a ISO UTC vía `new Date(...).toISOString()`.
+ * - `from`/`to` vienen del `datetime-local` (hora ART implícita, sin timezone).
+ *   Los convertimos a ISO UTC vía `parseArgentinaDateTimeToUtc()` (fix BUG-FE-05).
  * - Strings vacíos → omitidos.
  */
 export function toApiFilter(
@@ -148,12 +149,11 @@ export function toApiFilter(
   if (value.targetType.trim() !== '') out.targetType = value.targetType.trim()
   if (value.targetId.trim() !== '') out.targetId = value.targetId.trim()
   if (value.from.trim() !== '') {
-    const d = new Date(value.from)
-    if (!Number.isNaN(d.getTime())) out.from = d.toISOString()
+    // BUG-FE-05: interpretar el string como ART (-03:00), no como local del browser
+    try { out.from = parseArgentinaDateTimeToUtc(value.from) } catch { /* invalid input */ }
   }
   if (value.to.trim() !== '') {
-    const d = new Date(value.to)
-    if (!Number.isNaN(d.getTime())) out.to = d.toISOString()
+    try { out.to = parseArgentinaDateTimeToUtc(value.to) } catch { /* invalid input */ }
   }
 
   return out

src/web/src/pages/admin/audit/AuditPage.tsx

@@ -18,20 +18,7 @@ import {
   toApiFilter,
   type AuditFiltersValue,
 } from './AuditFilters'
-
-/** Formatea un ISO datetime a hora local AR (dd/mm/yyyy HH:mm:ss). */
-function formatOccurredAt(iso: string): string {
-  const d = new Date(iso)
-  if (Number.isNaN(d.getTime())) return iso
-  return d.toLocaleString('es-AR', {
-    year: 'numeric',
-    month: '2-digit',
-    day: '2-digit',
-    hour: '2-digit',
-    minute: '2-digit',
-    second: '2-digit',
-  })
-}
+import { formatInstant } from '@/lib/dateFormat'
 
 /** Copia texto al clipboard con fallback + toast. */
 async function copyToClipboard(text: string, label: string): Promise<void> {
@@ -123,7 +110,7 @@ export function AuditPage() {
         header: 'Fecha',
         cell: ({ row }) => (
           <span className="font-mono text-xs text-foreground">
-            {formatOccurredAt(row.original.occurredAt)}
+            {formatInstant(row.original.occurredAt)}
           </span>
         ),
         meta: { priority: 'high' },

src/web/src/tests/features/fiscal/iibb/IngresosBrutosFormModal.test.tsx

@@ -1,5 +1,6 @@
 // T600.20-T600.29 (IIBB) — TDD: IngresosBrutosFormModal
 // CRÍTICO: verifica que el modal de Editar NO tiene campo Alícuota [REQ-UI-007]
+// T600.10 — BUG-FE-03 regression: default vigenciaDesde usa todayArgentina (no UTC)
 import { describe, it, expect, vi } from 'vitest'
 import { render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
@@ -91,3 +92,21 @@ describe('IngresosBrutosFormModal — CRÍTICO: sin campo Alícuota en modo EDIT
     expect(onClose).toHaveBeenCalledTimes(1)
   })
 })
+
+describe('IngresosBrutosFormModal — BUG-FE-03 regression: vigenciaDesde usa todayArgentina', () => {
+  // A las 22:30 ART del 30/04, UTC ya es 01:30 del 01/05.
+  // new Date().toISOString().slice(0,10) devolvería "2026-05-01" (UTC) — INCORRECTO.
+  // todayArgentina() debe devolver "2026-04-30" — CORRECTO.
+  it('modo create: campo vigenciaDesde refleja fecha ART, no UTC, a las 22:30 ART del 30/04', () => {
+    vi.useFakeTimers()
+    vi.setSystemTime(new Date('2026-05-01T01:30:00.000Z'))  // 22:30 ART del 30/04
+
+    renderModal({ item: null })
+
+    const vigenciaInput = screen.getByLabelText(/vigencia desde/i) as HTMLInputElement
+    // El input debe tener value="2026-04-30" (fecha ART), no "2026-05-01" (UTC)
+    expect(vigenciaInput.value).toBe('2026-04-30')
+
+    vi.useRealTimers()
+  })
+})

src/web/src/tests/features/fiscal/iva/NuevaVigenciaModal.test.tsx

@@ -122,7 +122,7 @@ describe('NuevaVigenciaModal — preview con fechas correctas [REQ-UI-004]', ()
     )
   })
 
-  it('preview muestra fecha de cierre = vigenciaDesde - 1 día', async () => {
+  it('preview muestra fecha de cierre = vigenciaDesde - 1 día (formato dd/MM/yyyy, BUG-FE-04)', async () => {
     renderModal()
 
     const porcentajeInput = screen.getByLabelText(/porcentaje nuevo/i)
@@ -132,9 +132,9 @@ describe('NuevaVigenciaModal — preview con fechas correctas [REQ-UI-004]', ()
     const vigenciaInput = screen.getByLabelText(/vigencia desde/i)
     await userEvent.type(vigenciaInput, '2026-05-01')
 
-    // La versión anterior cierra el día anterior → 2026-04-30
+    // La versión anterior cierra el día anterior → 30/04/2026 (formato AR civil)
     await waitFor(() =>
-      expect(screen.getByText(/2026-04-30/)).toBeInTheDocument(),
+      expect(screen.getByText(/30\/04\/2026/)).toBeInTheDocument(),
     )
   })
 })

src/web/src/tests/features/fiscal/iva/TipoDeIvaFormModal.test.tsx

@@ -1,5 +1,6 @@
 // T600.5 — TDD: TipoDeIvaFormModal
 // CRÍTICO: verifica que el modal de Editar NO tiene campo Porcentaje [REQ-UI-003]
+// T600.10 — BUG-FE-03 regression: default vigenciaDesde usa todayArgentina (no UTC)
 import { describe, it, expect, beforeAll, afterAll, afterEach, vi } from 'vitest'
 import { render, screen, waitFor } from '@testing-library/react'
 import userEvent from '@testing-library/user-event'
@@ -131,3 +132,21 @@ describe('TipoDeIvaFormModal — validación', () => {
     expect(onClose).toHaveBeenCalledTimes(1)
   })
 })
+
+describe('TipoDeIvaFormModal — BUG-FE-03 regression: vigenciaDesde usa todayArgentina', () => {
+  // A las 22:30 ART del 30/04, UTC ya es 01:30 del 01/05.
+  // new Date().toISOString().slice(0,10) devolvería "2026-05-01" (UTC) — INCORRECTO.
+  // todayArgentina() debe devolver "2026-04-30" — CORRECTO.
+  it('modo create: campo vigenciaDesde refleja fecha ART, no UTC, a las 22:30 ART del 30/04', () => {
+    vi.useFakeTimers()
+    vi.setSystemTime(new Date('2026-05-01T01:30:00.000Z'))  // 22:30 ART del 30/04
+
+    renderModal({ item: null })
+
+    const vigenciaInput = screen.getByLabelText(/vigencia desde/i) as HTMLInputElement
+    // El input debe tener value="2026-04-30" (fecha ART), no "2026-05-01" (UTC)
+    expect(vigenciaInput.value).toBe('2026-04-30')
+
+    vi.useRealTimers()
+  })
+})

src/web/src/tests/lib/dateFormat.test.ts

@@ -0,0 +1,146 @@
+import { describe, it, expect, afterEach, vi } from 'vitest';
+import {
+    AR_TZ,
+    formatInstant,
+    formatInstantOrDash,
+    formatCivilDate,
+    formatCivilDateRange,
+    todayArgentina,
+    parseCivilDate,
+    prevCivilDate,
+} from '@/lib/dateFormat';
+
+describe('dateFormat.ts', () => {
+    describe('AR_TZ constant', () => {
+        it('is America/Argentina/Buenos_Aires', () => {
+            expect(AR_TZ).toBe('America/Argentina/Buenos_Aires');
+        });
+    });
+
+    describe('formatInstant (Cat1 — UTC → AR display)', () => {
+        it('converts 01:30 UTC to 22:30 ART previous day', () => {
+            const iso = '2026-05-01T01:30:00.000Z';
+            const result = formatInstant(iso);
+            // format es-AR short + medium: "30/4/2026, 22:30:00" o similar
+            expect(result).toMatch(/30\/0?4\/2026/);
+            expect(result).toMatch(/22:30/);
+        });
+
+        it('uses AR timezone regardless of browser TZ', () => {
+            const iso = '2026-05-01T12:00:00.000Z'; // 09:00 ART
+            const result = formatInstant(iso);
+            expect(result).toMatch(/01\/0?5\/2026/);
+            expect(result).toMatch(/09:00/);
+        });
+    });
+
+    describe('formatInstantOrDash (Cat1 nullable)', () => {
+        it('returns "—" for null', () => {
+            expect(formatInstantOrDash(null)).toBe('—');
+        });
+
+        it('returns "—" for undefined', () => {
+            expect(formatInstantOrDash(undefined)).toBe('—');
+        });
+
+        it('delegates to formatInstant for valid ISO', () => {
+            const iso = '2026-05-01T01:30:00.000Z';
+            expect(formatInstantOrDash(iso)).toBe(formatInstant(iso));
+        });
+    });
+
+    describe('formatCivilDate (Cat2 — yyyy-MM-dd → dd/MM/yyyy)', () => {
+        it('splits manually without new Date()', () => {
+            expect(formatCivilDate('2026-05-01')).toBe('01/05/2026');
+        });
+
+        it('preserves day for early-year dates', () => {
+            expect(formatCivilDate('2026-01-01')).toBe('01/01/2026');
+        });
+
+        it('preserves day for end-of-year dates', () => {
+            expect(formatCivilDate('2026-12-31')).toBe('31/12/2026');
+        });
+    });
+
+    describe('formatCivilDateRange', () => {
+        it('renders full range with arrow', () => {
+            expect(formatCivilDateRange('2026-05-01', '2026-12-31'))
+                .toBe('01/05/2026 → 31/12/2026');
+        });
+
+        it('renders open range when hasta is null', () => {
+            expect(formatCivilDateRange('2026-05-01', null))
+                .toBe('desde 01/05/2026');
+        });
+    });
+
+    describe('todayArgentina (fix BUG-FE-03)', () => {
+        afterEach(() => {
+            vi.useRealTimers();
+        });
+
+        it('returns 2026-04-30 at 22:30 ART of 30/04 (BUG-FE-03 regression)', () => {
+            // 22:30 ART = 01:30 UTC del día siguiente
+            vi.useFakeTimers();
+            vi.setSystemTime(new Date('2026-05-01T01:30:00.000Z'));
+
+            expect(todayArgentina()).toBe('2026-04-30');
+        });
+
+        it('returns 2026-05-01 at 00:30 ART of 01/05', () => {
+            // 00:30 ART = 03:30 UTC
+            vi.useFakeTimers();
+            vi.setSystemTime(new Date('2026-05-01T03:30:00.000Z'));
+
+            expect(todayArgentina()).toBe('2026-05-01');
+        });
+
+        it('returns 2024-02-28 at 22:30 ART of 28/02/2024 (bisiesto)', () => {
+            // 22:30 ART del 28/02/2024 = 01:30 UTC del 29/02/2024
+            vi.useFakeTimers();
+            vi.setSystemTime(new Date('2024-02-29T01:30:00.000Z'));
+
+            expect(todayArgentina()).toBe('2024-02-28');
+        });
+
+        it('returns 2026-12-31 at 22:30 ART of 31/12 (end of year)', () => {
+            // 22:30 ART del 31/12/2026 = 01:30 UTC del 01/01/2027
+            vi.useFakeTimers();
+            vi.setSystemTime(new Date('2027-01-01T01:30:00.000Z'));
+
+            expect(todayArgentina()).toBe('2026-12-31');
+        });
+    });
+
+    describe('parseCivilDate', () => {
+        it('splits "2026-05-01" into {year, month, day}', () => {
+            expect(parseCivilDate('2026-05-01')).toEqual({ year: 2026, month: 5, day: 1 });
+        });
+
+        it('does not use new Date() (no UTC creep)', () => {
+            const result = parseCivilDate('2026-01-01');
+            expect(result.year).toBe(2026);
+            expect(result.month).toBe(1);
+            expect(result.day).toBe(1);
+        });
+    });
+
+    describe('prevCivilDate (BUG-FE-04 — fecha cierre NuevaVigencia)', () => {
+        it('returns day before (2026-05-01 → 2026-04-30)', () => {
+            expect(prevCivilDate('2026-05-01')).toBe('2026-04-30');
+        });
+
+        it('crosses month boundary (2026-05-31 → 2026-05-30)', () => {
+            expect(prevCivilDate('2026-06-01')).toBe('2026-05-31');
+        });
+
+        it('crosses year boundary (2026-01-01 → 2025-12-31)', () => {
+            expect(prevCivilDate('2026-01-01')).toBe('2025-12-31');
+        });
+
+        it('handles leap year (2024-03-01 → 2024-02-29)', () => {
+            expect(prevCivilDate('2024-03-01')).toBe('2024-02-29');
+        });
+    });
+});

tests/SIGCM2.Application.Tests/Auth/Login/LoginCommandHandlerTests.cs

@@ -44,7 +44,7 @@ public class LoginCommandHandlerTests
         _handler = new LoginCommandHandler(
             _repository, _hasher, _jwtService,
             _refreshRepo, _refreshGenerator, _clientCtx, _authOptions,
-            _rolPermisoRepo, _security, _logger);
+            _rolPermisoRepo, _security, _logger, TimeProvider.System);
     }
 
     // Scenario: valid credentials → returns token response with usuario populated

tests/SIGCM2.Application.Tests/Auth/Logout/LogoutCommandHandlerTests.cs

@@ -13,7 +13,7 @@ public class LogoutCommandHandlerTests
 
     public LogoutCommandHandlerTests()
     {
-        _handler = new LogoutCommandHandler(_refreshRepo, _security);
+        _handler = new LogoutCommandHandler(_refreshRepo, _security, TimeProvider.System);
     }
 
     [Fact]

tests/SIGCM2.Application.Tests/Auth/Refresh/RefreshCommandHandlerTests.cs

@@ -36,7 +36,8 @@ public class RefreshCommandHandlerTests
         _generator.Generate().Returns("new_raw_token_value_xyz");
 
         _handler = new RefreshCommandHandler(
-            _refreshRepo, _usuarioRepo, _jwtService, _generator, _clientCtx, _authOptions, _security);
+            _refreshRepo, _usuarioRepo, _jwtService, _generator, _clientCtx, _authOptions, _security,
+            TimeProvider.System);
     }
 
     // Helper: build an active stored RefreshToken with a matching principal

tests/SIGCM2.Application.Tests/Domain/Fiscal/IngresosBrutosTests.cs

@@ -95,7 +95,7 @@ public class IngresosBrutosTests
     {
         var original = MakeIIBB(descripcion: "Original");
 
-        var updated = original.WithDescripcion("Actualizado");
+        var updated = original.WithDescripcion("Actualizado", DateTime.UtcNow);
 
         updated.Should().NotBeSameAs(original);
         updated.Descripcion.Should().Be("Actualizado");
@@ -107,7 +107,7 @@ public class IngresosBrutosTests
     {
         var original = MakeIIBB(activo: true);
 
-        var deactivated = original.Deactivate();
+        var deactivated = original.Deactivate(DateTime.UtcNow);
 
         deactivated.Activo.Should().BeFalse();
         deactivated.Alicuota.Should().Be(original.Alicuota);
@@ -119,7 +119,7 @@ public class IngresosBrutosTests
     {
         var original = MakeIIBB(activo: false);
 
-        var reactivated = original.Reactivate();
+        var reactivated = original.Reactivate(DateTime.UtcNow);
 
         reactivated.Activo.Should().BeTrue();
     }
@@ -130,7 +130,7 @@ public class IngresosBrutosTests
         var original = MakeIIBB(vigenciaHasta: null);
         var hasta = new DateOnly(2026, 5, 31);
 
-        var cerrado = original.CerrarVigencia(hasta);
+        var cerrado = original.CerrarVigencia(hasta, DateTime.UtcNow);
 
         cerrado.VigenciaHasta.Should().Be(hasta);
         cerrado.Alicuota.Should().Be(original.Alicuota);
@@ -143,7 +143,7 @@ public class IngresosBrutosTests
     {
         var predecesora = MakeIIBB(id: 5, alicuota: 2.5m, vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var (cerrada, nueva) = predecesora.NuevaVersion(3.0m, Desde2026);
+        var (cerrada, nueva) = predecesora.NuevaVersion(3.0m, Desde2026, DateTime.UtcNow);
 
         cerrada.Id.Should().Be(5);
         cerrada.VigenciaHasta.Should().Be(Desde2026.AddDays(-1));
@@ -166,7 +166,7 @@ public class IngresosBrutosTests
             vigenciaDesde: Desde2020,
             vigenciaHasta: new DateOnly(2025, 12, 31));
 
-        var act = () => predecesora.NuevaVersion(4.0m, Desde2026);
+        var act = () => predecesora.NuevaVersion(4.0m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<InvalidOperationException>();
     }
@@ -176,7 +176,7 @@ public class IngresosBrutosTests
     {
         var predecesora = MakeIIBB(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(4.0m, Desde2020);
+        var act = () => predecesora.NuevaVersion(4.0m, Desde2020, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("vigenciaDesde");
@@ -187,7 +187,7 @@ public class IngresosBrutosTests
     {
         var predecesora = MakeIIBB(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(-1m, Desde2026);
+        var act = () => predecesora.NuevaVersion(-1m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("nuevaAlicuota");
@@ -198,7 +198,7 @@ public class IngresosBrutosTests
     {
         var predecesora = MakeIIBB(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(101m, Desde2026);
+        var act = () => predecesora.NuevaVersion(101m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("nuevaAlicuota");

tests/SIGCM2.Application.Tests/Domain/Fiscal/TipoDeIvaTests.cs

@@ -150,7 +150,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(descripcion: "Original");
 
-        var updated = original.WithDescripcion("Nueva descripcion");
+        var updated = original.WithDescripcion("Nueva descripcion", DateTime.UtcNow);
 
         updated.Should().NotBeSameAs(original);
         updated.Descripcion.Should().Be("Nueva descripcion");
@@ -162,7 +162,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(codigo: "IVA_21");
 
-        var updated = original.WithCodigo("NO_GRAVADO");
+        var updated = original.WithCodigo("NO_GRAVADO", DateTime.UtcNow);
 
         updated.Codigo.Should().Be("NO_GRAVADO");
         updated.Porcentaje.Should().Be(original.Porcentaje);
@@ -174,7 +174,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(aplicaIVA: true);
 
-        var updated = original.WithAplicaIVA(false);
+        var updated = original.WithAplicaIVA(false, DateTime.UtcNow);
 
         updated.AplicaIVA.Should().BeFalse();
         updated.Porcentaje.Should().Be(original.Porcentaje);
@@ -185,7 +185,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(activo: true);
 
-        var deactivated = original.Deactivate();
+        var deactivated = original.Deactivate(DateTime.UtcNow);
 
         deactivated.Activo.Should().BeFalse();
         deactivated.Porcentaje.Should().Be(original.Porcentaje);
@@ -197,7 +197,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(activo: false);
 
-        var reactivated = original.Reactivate();
+        var reactivated = original.Reactivate(DateTime.UtcNow);
 
         reactivated.Activo.Should().BeTrue();
     }
@@ -208,7 +208,7 @@ public class TipoDeIvaTests
         var original = MakeTipoDeIva(vigenciaHasta: null);
         var hasta = new DateOnly(2026, 5, 31);
 
-        var cerrado = original.CerrarVigencia(hasta);
+        var cerrado = original.CerrarVigencia(hasta, DateTime.UtcNow);
 
         cerrado.VigenciaHasta.Should().Be(hasta);
         cerrado.Porcentaje.Should().Be(original.Porcentaje);
@@ -222,7 +222,7 @@ public class TipoDeIvaTests
     {
         var predecesora = MakeTipoDeIva(id: 5, porcentaje: 21m, vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var (cerrada, nueva) = predecesora.NuevaVersion(23.5m, Desde2026);
+        var (cerrada, nueva) = predecesora.NuevaVersion(23.5m, Desde2026, DateTime.UtcNow);
 
         cerrada.Id.Should().Be(5);
         cerrada.VigenciaHasta.Should().Be(Desde2026.AddDays(-1), "predecesora queda cerrada el día anterior");
@@ -244,7 +244,7 @@ public class TipoDeIvaTests
         var predecesora = MakeTipoDeIva(porcentaje: 10.5m, vigenciaDesde: Desde2020);
         var nuevaVigencia = new DateOnly(2025, 1, 1);
 
-        var (_, nueva) = predecesora.NuevaVersion(21m, nuevaVigencia);
+        var (_, nueva) = predecesora.NuevaVersion(21m, nuevaVigencia, DateTime.UtcNow);
 
         nueva.Porcentaje.Should().Be(21m);
         predecesora.Porcentaje.Should().Be(10.5m, "predecesora no muta");
@@ -259,7 +259,7 @@ public class TipoDeIvaTests
             vigenciaDesde: Desde2020,
             vigenciaHasta: new DateOnly(2025, 12, 31)); // ya cerrada
 
-        var act = () => predecesora.NuevaVersion(23.5m, Desde2026);
+        var act = () => predecesora.NuevaVersion(23.5m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<InvalidOperationException>();
     }
@@ -269,7 +269,7 @@ public class TipoDeIvaTests
     {
         var predecesora = MakeTipoDeIva(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(23.5m, Desde2020); // igual a VigenciaDesde predecesora
+        var act = () => predecesora.NuevaVersion(23.5m, Desde2020, DateTime.UtcNow); // igual a VigenciaDesde predecesora
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("vigenciaDesde");
@@ -281,7 +281,7 @@ public class TipoDeIvaTests
         var predecesora = MakeTipoDeIva(vigenciaDesde: Desde2026, vigenciaHasta: null);
         var vigenciaAnterior = new DateOnly(2020, 1, 1);
 
-        var act = () => predecesora.NuevaVersion(23.5m, vigenciaAnterior);
+        var act = () => predecesora.NuevaVersion(23.5m, vigenciaAnterior, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("vigenciaDesde");
@@ -292,7 +292,7 @@ public class TipoDeIvaTests
     {
         var predecesora = MakeTipoDeIva(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(-1m, Desde2026);
+        var act = () => predecesora.NuevaVersion(-1m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("nuevoPorcentaje");
@@ -303,7 +303,7 @@ public class TipoDeIvaTests
     {
         var predecesora = MakeTipoDeIva(vigenciaDesde: Desde2020, vigenciaHasta: null);
 
-        var act = () => predecesora.NuevaVersion(101m, Desde2026);
+        var act = () => predecesora.NuevaVersion(101m, Desde2026, DateTime.UtcNow);
 
         act.Should().Throw<ArgumentException>()
             .WithParameterName("nuevoPorcentaje");
@@ -326,7 +326,7 @@ public class TipoDeIvaTests
     {
         var original = MakeTipoDeIva(id: 99, porcentaje: 21m, vigenciaDesde: Desde2020);
 
-        var updated = original.WithDescripcion("Nueva");
+        var updated = original.WithDescripcion("Nueva", DateTime.UtcNow);
 
         updated.Id.Should().Be(99);
         updated.Porcentaje.Should().Be(21m);

tests/SIGCM2.Application.Tests/Domain/PuntoDeVentaTests.cs

@@ -43,7 +43,7 @@ public class PuntoDeVentaTests
     {
         var original = MakePdv(id: 10, nombre: "Original");
 
-        var updated = original.WithUpdatedProfile(nombre: "Actualizado", numeroAFIP: 7, descripcion: "Desc");
+        var updated = original.WithUpdatedProfile(nombre: "Actualizado", numeroAFIP: 7, descripcion: "Desc", now: DateTime.UtcNow);
 
         Assert.NotSame(original, updated);
         Assert.Equal("Actualizado", updated.Nombre);
@@ -56,7 +56,7 @@ public class PuntoDeVentaTests
     {
         var original = MakePdv(id: 10, medioId: 5);
 
-        var updated = original.WithUpdatedProfile("Nuevo", 2, null);
+        var updated = original.WithUpdatedProfile("Nuevo", 2, null, DateTime.UtcNow);
 
         Assert.Equal(10, updated.Id);
         Assert.Equal(5, updated.MedioId);
@@ -69,7 +69,7 @@ public class PuntoDeVentaTests
     {
         var original = MakePdv();
 
-        var updated = original.WithUpdatedProfile("Nuevo", 2, null);
+        var updated = original.WithUpdatedProfile("Nuevo", 2, null, DateTime.UtcNow);
 
         Assert.NotNull(updated.FechaModificacion);
     }
@@ -81,7 +81,7 @@ public class PuntoDeVentaTests
     {
         var pdv = MakePdv(activo: true);
 
-        var deactivated = pdv.WithActivo(false);
+        var deactivated = pdv.WithActivo(false, DateTime.UtcNow);
 
         Assert.False(deactivated.Activo);
         Assert.NotSame(pdv, deactivated);
@@ -92,7 +92,7 @@ public class PuntoDeVentaTests
     {
         var pdv = MakePdv(activo: false);
 
-        var reactivated = pdv.WithActivo(true);
+        var reactivated = pdv.WithActivo(true, DateTime.UtcNow);
 
         Assert.True(reactivated.Activo);
     }
@@ -102,7 +102,7 @@ public class PuntoDeVentaTests
     {
         var pdv = MakePdv(id: 99, medioId: 3);
 
-        var toggled = pdv.WithActivo(false);
+        var toggled = pdv.WithActivo(false, DateTime.UtcNow);
 
         Assert.Equal(99, toggled.Id);
         Assert.Equal(3, toggled.MedioId);

tests/SIGCM2.Application.Tests/Domain/UsuarioTests.cs

@@ -101,7 +101,7 @@ public class UsuarioTests
     public void WithUpdatedProfile_Returns_NewInstance()
     {
         var u = MakeUsuario();
-        var updated = u.WithUpdatedProfile("NuevoNombre", "NuevoApellido", "new@x.com", "cajero", true);
+        var updated = u.WithUpdatedProfile("NuevoNombre", "NuevoApellido", "new@x.com", "cajero", true, DateTime.UtcNow);
         Assert.NotSame(u, updated);
     }
 
@@ -109,7 +109,7 @@ public class UsuarioTests
     public void WithUpdatedProfile_Sets_Fields_Correctly()
     {
         var u = MakeUsuario();
-        var updated = u.WithUpdatedProfile("Pedro", "Gómez", "p@g.com", "cajero", false);
+        var updated = u.WithUpdatedProfile("Pedro", "Gómez", "p@g.com", "cajero", false, DateTime.UtcNow);
         Assert.Equal("Pedro", updated.Nombre);
         Assert.Equal("Gómez", updated.Apellido);
         Assert.Equal("p@g.com", updated.Email);
@@ -121,8 +121,9 @@ public class UsuarioTests
     public void WithUpdatedProfile_Sets_FechaModificacion_To_UtcNow()
     {
         var before = DateTime.UtcNow.AddSeconds(-1);
+        var now = DateTime.UtcNow;
         var u = MakeUsuario();
-        var updated = u.WithUpdatedProfile("A", "B", null, "admin", true);
+        var updated = u.WithUpdatedProfile("A", "B", null, "admin", true, now);
         Assert.NotNull(updated.FechaModificacion);
         Assert.True(updated.FechaModificacion >= before);
     }
@@ -131,7 +132,7 @@ public class UsuarioTests
     public void WithUpdatedProfile_Preserves_Immutable_Fields()
     {
         var u = MakeUsuario();
-        var updated = u.WithUpdatedProfile("X", "Y", null, "cajero", true);
+        var updated = u.WithUpdatedProfile("X", "Y", null, "cajero", true, DateTime.UtcNow);
         Assert.Equal(u.Id, updated.Id);
         Assert.Equal(u.Username, updated.Username);
         Assert.Equal(u.PasswordHash, updated.PasswordHash);
@@ -143,7 +144,7 @@ public class UsuarioTests
     public void WithNewPasswordHash_Returns_NewInstance()
     {
         var u = MakeUsuario();
-        var updated = u.WithNewPasswordHash("newhash", mustChangePassword: false);
+        var updated = u.WithNewPasswordHash("newhash", mustChangePassword: false, DateTime.UtcNow);
         Assert.NotSame(u, updated);
     }
 
@@ -151,7 +152,7 @@ public class UsuarioTests
     public void WithNewPasswordHash_Sets_Hash_And_MustChange()
     {
         var u = MakeUsuario();
-        var updated = u.WithNewPasswordHash("newhash", mustChangePassword: true);
+        var updated = u.WithNewPasswordHash("newhash", mustChangePassword: true, DateTime.UtcNow);
         Assert.Equal("newhash", updated.PasswordHash);
         Assert.True(updated.MustChangePassword);
     }
@@ -160,7 +161,7 @@ public class UsuarioTests
     public void WithNewPasswordHash_Clears_MustChange_When_False()
     {
         var u = MakeUsuario(mustChangePassword: true);
-        var updated = u.WithNewPasswordHash("hash2", mustChangePassword: false);
+        var updated = u.WithNewPasswordHash("hash2", mustChangePassword: false, DateTime.UtcNow);
         Assert.False(updated.MustChangePassword);
     }
 
@@ -168,8 +169,9 @@ public class UsuarioTests
     public void WithNewPasswordHash_Sets_FechaModificacion()
     {
         var before = DateTime.UtcNow.AddSeconds(-1);
+        var now = DateTime.UtcNow;
         var u = MakeUsuario();
-        var updated = u.WithNewPasswordHash("hash2", false);
+        var updated = u.WithNewPasswordHash("hash2", false, now);
         Assert.NotNull(updated.FechaModificacion);
         Assert.True(updated.FechaModificacion >= before);
     }
@@ -208,7 +210,7 @@ public class UsuarioTests
     public void WithMustChangePassword_Sets_Value_True()
     {
         var u = MakeUsuario(mustChangePassword: false);
-        var updated = u.WithMustChangePassword(true);
+        var updated = u.WithMustChangePassword(true, DateTime.UtcNow);
         Assert.True(updated.MustChangePassword);
     }
 
@@ -216,8 +218,9 @@ public class UsuarioTests
     public void WithMustChangePassword_Sets_FechaModificacion()
     {
         var before = DateTime.UtcNow.AddSeconds(-1);
+        var now = DateTime.UtcNow;
         var u = MakeUsuario();
-        var updated = u.WithMustChangePassword(true);
+        var updated = u.WithMustChangePassword(true, now);
         Assert.NotNull(updated.FechaModificacion);
         Assert.True(updated.FechaModificacion >= before);
     }

tests/SIGCM2.Application.Tests/Infrastructure/Audit/AuditLoggerTests.cs

@@ -22,7 +22,7 @@ public sealed class AuditLoggerTests
         repo ??= Substitute.For<IAuditEventRepository>();
         options ??= new AuditOptions();
         var optsWrapper = Options.Create(options);
-        return new AuditLogger(context, repo, optsWrapper);
+        return new AuditLogger(context, repo, optsWrapper, TimeProvider.System);
     }
 
     [Fact]

tests/SIGCM2.Application.Tests/Infrastructure/Audit/SecurityEventLoggerTests.cs

@@ -20,7 +20,7 @@ public sealed class SecurityEventLoggerTests
         repo ??= Substitute.For<ISecurityEventRepository>();
         context ??= Substitute.For<IAuditContext>();
         options ??= new AuditOptions();
-        return new SecurityEventLogger(repo, context, Options.Create(options));
+        return new SecurityEventLogger(repo, context, Options.Create(options), TimeProvider.System);
     }
 
     [Fact]

tests/SIGCM2.Application.Tests/Infrastructure/JwtServiceTests.cs

@@ -22,7 +22,7 @@ public class JwtServiceTests : IDisposable
             Audience = "sigcm2.web",
             AccessTokenMinutes = 60
         };
-        _jwtService = new JwtService(_rsa, _options);
+        _jwtService = new JwtService(_rsa, _options, TimeProvider.System);
     }
 
     public void Dispose() => _rsa.Dispose();
@@ -219,7 +219,7 @@ public class JwtServiceTests : IDisposable
         // Sign with a different RSA key
         using var otherRsa = System.Security.Cryptography.RSA.Create(2048);
         var otherOptions = new JwtOptions { Issuer = "sigcm2.api", Audience = "sigcm2.web", AccessTokenMinutes = 60 };
-        var otherService = new JwtService(otherRsa, otherOptions);
+        var otherService = new JwtService(otherRsa, otherOptions, TimeProvider.System);
         var tokenFromOtherKey = otherService.GenerateAccessToken(MakeUsuario());
 
         // Validating with the correct key should throw

tests/SIGCM2.Application.Tests/IngresosBrutos/Create/CreateIngresosBrutosCommandHandlerTests.cs

@@ -21,7 +21,7 @@ public class CreateIngresosBrutosCommandHandlerTests
 
     public CreateIngresosBrutosCommandHandlerTests()
     {
-        _handler = new CreateIngresosBrutosCommandHandler(_repo, _audit);
+        _handler = new CreateIngresosBrutosCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.InsertAsync(Arg.Any<IibbEntity>(), Arg.Any<CancellationToken>()).Returns(55);
     }
 

tests/SIGCM2.Application.Tests/IngresosBrutos/Deactivate/DeactivateIngresosBrutosCommandHandlerTests.cs

@@ -24,7 +24,7 @@ public class DeactivateIngresosBrutosCommandHandlerTests
 
     public DeactivateIngresosBrutosCommandHandlerTests()
     {
-        _handler = new DeactivateIngresosBrutosCommandHandler(_repo, _audit);
+        _handler = new DeactivateIngresosBrutosCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.SetActivoAsync(Arg.Any<int>(), Arg.Any<bool>(), Arg.Any<CancellationToken>()).Returns(true);
     }

tests/SIGCM2.Application.Tests/IngresosBrutos/NuevaVersion/NuevaVersionIngresosBrutosCommandHandlerTests.cs

@@ -31,7 +31,7 @@ public class NuevaVersionIngresosBrutosCommandHandlerTests
 
     public NuevaVersionIngresosBrutosCommandHandlerTests()
     {
-        _handler = new NuevaVersionIngresosBrutosCommandHandler(_repo, _audit);
+        _handler = new NuevaVersionIngresosBrutosCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakePredecesora());
         _repo.UpdateCierreVigenciaAsync(Arg.Any<int>(), Arg.Any<DateOnly>(), Arg.Any<CancellationToken>()).Returns(true);
         _repo.InsertAsync(Arg.Any<IibbEntity>(), Arg.Any<CancellationToken>()).Returns(88);

tests/SIGCM2.Application.Tests/IngresosBrutos/Reactivate/ReactivateIngresosBrutosCommandHandlerTests.cs

@@ -24,7 +24,7 @@ public class ReactivateIngresosBrutosCommandHandlerTests
 
     public ReactivateIngresosBrutosCommandHandlerTests()
     {
-        _handler = new ReactivateIngresosBrutosCommandHandler(_repo, _audit);
+        _handler = new ReactivateIngresosBrutosCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.SetActivoAsync(Arg.Any<int>(), Arg.Any<bool>(), Arg.Any<CancellationToken>()).Returns(true);
     }

tests/SIGCM2.Application.Tests/IngresosBrutos/Update/UpdateIngresosBrutosCommandHandlerTests.cs

@@ -27,7 +27,7 @@ public class UpdateIngresosBrutosCommandHandlerTests
 
     public UpdateIngresosBrutosCommandHandlerTests()
     {
-        _handler = new UpdateIngresosBrutosCommandHandler(_repo, _audit);
+        _handler = new UpdateIngresosBrutosCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.UpdateCosmeticoAsync(Arg.Any<int>(), Arg.Any<string>(), Arg.Any<bool>(),
                                    Arg.Any<CancellationToken>()).Returns(true);

tests/SIGCM2.Application.Tests/Medios/Deactivate/DeactivateMedioCommandHandlerTests.cs

@@ -18,7 +18,7 @@ public class DeactivateMedioCommandHandlerTests
 
     public DeactivateMedioCommandHandlerTests()
     {
-        _handler = new DeactivateMedioCommandHandler(_repo, _audit);
+        _handler = new DeactivateMedioCommandHandler(_repo, _audit, TimeProvider.System);
     }
 
     // ── not found → throws ──────────────────────────────────────────────────

tests/SIGCM2.Application.Tests/Medios/MedioRepositoryTests.cs

@@ -148,7 +148,7 @@ public class MedioRepositoryTests : IAsyncLifetime
         var id = await _repository.AddAsync(Medio.ForCreation("UPD01", "Original", TipoMedio.Diario, null));
         var original = await _repository.GetByIdAsync(id);
 
-        var updated = original!.WithUpdatedProfile("Actualizado", TipoMedio.Radio, 7);
+        var updated = original!.WithUpdatedProfile("Actualizado", TipoMedio.Radio, 7, DateTime.UtcNow);
         await _repository.UpdateAsync(updated);
 
         var result = await _repository.GetByIdAsync(id);
@@ -167,7 +167,7 @@ public class MedioRepositoryTests : IAsyncLifetime
         var id = await _repository.AddAsync(Medio.ForCreation("HIST01", "Historial", TipoMedio.Diario, null));
         var original = await _repository.GetByIdAsync(id);
 
-        var updated = original!.WithUpdatedProfile("Historial v2", TipoMedio.Web, null);
+        var updated = original!.WithUpdatedProfile("Historial v2", TipoMedio.Web, null, DateTime.UtcNow);
         await _repository.UpdateAsync(updated);
 
         var historyCount = await _connection.ExecuteScalarAsync<int>(
@@ -186,7 +186,7 @@ public class MedioRepositoryTests : IAsyncLifetime
 
         // Deactivate second medio
         var inact = await _repository.GetByIdAsync(idInact);
-        await _repository.UpdateAsync(inact!.WithActivo(false));
+        await _repository.UpdateAsync(inact!.WithActivo(false, DateTime.UtcNow));
 
         var result = await _repository.GetPagedAsync(new(Page: 1, PageSize: 50, Activo: true, Tipo: null, Search: null));
 

tests/SIGCM2.Application.Tests/Medios/Reactivate/ReactivateMedioCommandHandlerTests.cs

@@ -19,7 +19,7 @@ public class ReactivateMedioCommandHandlerTests
 
     public ReactivateMedioCommandHandlerTests()
     {
-        _handler = new ReactivateMedioCommandHandler(_repo, _audit);
+        _handler = new ReactivateMedioCommandHandler(_repo, _audit, TimeProvider.System);
     }
 
     // ── not found → throws ──────────────────────────────────────────────────

tests/SIGCM2.Application.Tests/Medios/Update/UpdateMedioCommandHandlerTests.cs

@@ -24,7 +24,7 @@ public class UpdateMedioCommandHandlerTests
 
     public UpdateMedioCommandHandlerTests()
     {
-        _handler = new UpdateMedioCommandHandler(_repo, _audit);
+        _handler = new UpdateMedioCommandHandler(_repo, _audit, TimeProvider.System);
     }
 
     // ── not found → throws ──────────────────────────────────────────────────

tests/SIGCM2.Application.Tests/PuntosDeVenta/Deactivate/DeactivatePuntoDeVentaCommandHandlerTests.cs

@@ -22,7 +22,7 @@ public class DeactivatePuntoDeVentaCommandHandlerTests
 
     public DeactivatePuntoDeVentaCommandHandlerTests()
     {
-        _handler = new DeactivatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new DeactivatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         _medioRepo.GetByIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>()).Returns(MakeMedio(5, true));
     }
 

tests/SIGCM2.Application.Tests/PuntosDeVenta/Reactivate/ReactivatePuntoDeVentaCommandHandlerTests.cs

@@ -23,7 +23,7 @@ public class ReactivatePuntoDeVentaCommandHandlerTests
 
     public ReactivatePuntoDeVentaCommandHandlerTests()
     {
-        _handler = new ReactivatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new ReactivatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         _medioRepo.GetByIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>()).Returns(MakeMedio(5, true));
     }
 

tests/SIGCM2.Application.Tests/PuntosDeVenta/Update/UpdatePuntoDeVentaCommandHandlerTests.cs

@@ -25,7 +25,7 @@ public class UpdatePuntoDeVentaCommandHandlerTests
 
     public UpdatePuntoDeVentaCommandHandlerTests()
     {
-        _handler = new UpdatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new UpdatePuntoDeVentaCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(10, Arg.Any<CancellationToken>()).Returns(MakePdv(10));
         _medioRepo.GetByIdAsync(5, Arg.Any<CancellationToken>()).Returns(MakeMedio(5));
         _repo.ExistsByNumeroAFIPInMedioAsync(Arg.Any<int>(), Arg.Any<short>(), Arg.Any<int?>(), Arg.Any<CancellationToken>()).Returns(false);

tests/SIGCM2.Application.Tests/Secciones/Deactivate/DeactivateSeccionCommandHandlerTests.cs

@@ -22,7 +22,7 @@ public class DeactivateSeccionCommandHandlerTests
 
     public DeactivateSeccionCommandHandlerTests()
     {
-        _handler = new DeactivateSeccionCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new DeactivateSeccionCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         // Default: medio is active
         _medioRepo.GetByIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>()).Returns(MakeMedio(1, true));
     }

tests/SIGCM2.Application.Tests/Secciones/Reactivate/ReactivateSeccionCommandHandlerTests.cs

@@ -23,7 +23,7 @@ public class ReactivateSeccionCommandHandlerTests
 
     public ReactivateSeccionCommandHandlerTests()
     {
-        _handler = new ReactivateSeccionCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new ReactivateSeccionCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         // Default: medio is active
         _medioRepo.GetByIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>()).Returns(MakeMedio(1, true));
     }

tests/SIGCM2.Application.Tests/Secciones/SeccionRepositoryTests.cs

@@ -150,7 +150,7 @@ public class SeccionRepositoryTests : IAsyncLifetime
         var id = await _repository.AddAsync(Seccion.ForCreation(_medioId, "UPD01", "Original", "clasificados"));
         var original = await _repository.GetByIdAsync(id);
 
-        var updated = original!.WithUpdatedProfile("Actualizado", "notables");
+        var updated = original!.WithUpdatedProfile("Actualizado", "notables", DateTime.UtcNow);
         await _repository.UpdateAsync(updated);
 
         var result = await _repository.GetByIdAsync(id);
@@ -168,7 +168,7 @@ public class SeccionRepositoryTests : IAsyncLifetime
         var id = await _repository.AddAsync(Seccion.ForCreation(_medioId, "HIST01", "Historial", "clasificados"));
         var original = await _repository.GetByIdAsync(id);
 
-        var updated = original!.WithUpdatedProfile("Historial v2", "suplementos");
+        var updated = original!.WithUpdatedProfile("Historial v2", "suplementos", DateTime.UtcNow);
         await _repository.UpdateAsync(updated);
 
         var historyCount = await _connection.ExecuteScalarAsync<int>(
@@ -213,7 +213,7 @@ public class SeccionRepositoryTests : IAsyncLifetime
         var inactId = await _repository.AddAsync(Seccion.ForCreation(_medioId, "INACT01", "Inactiva", "clasificados"));
 
         var inact = await _repository.GetByIdAsync(inactId);
-        await _repository.UpdateAsync(inact!.WithActivo(false));
+        await _repository.UpdateAsync(inact!.WithActivo(false, DateTime.UtcNow));
 
         var result = await _repository.GetPagedAsync(new(Page: 1, PageSize: 50, MedioId: _medioId, Tipo: null, Activo: true, Search: null));
 

tests/SIGCM2.Application.Tests/Secciones/Update/UpdateSeccionCommandHandlerTests.cs

@@ -27,7 +27,7 @@ public class UpdateSeccionCommandHandlerTests
 
     public UpdateSeccionCommandHandlerTests()
     {
-        _handler = new UpdateSeccionCommandHandler(_repo, _medioRepo, _audit);
+        _handler = new UpdateSeccionCommandHandler(_repo, _medioRepo, _audit, TimeProvider.System);
         // Default: medio is active
         _medioRepo.GetByIdAsync(Arg.Any<int>(), Arg.Any<CancellationToken>()).Returns(MakeMedio(1, true));
     }

tests/SIGCM2.Application.Tests/TiposDeIva/Create/CreateTipoDeIvaCommandHandlerTests.cs

@@ -22,7 +22,7 @@ public class CreateTipoDeIvaCommandHandlerTests
 
     public CreateTipoDeIvaCommandHandlerTests()
     {
-        _handler = new CreateTipoDeIvaCommandHandler(_repo, _audit);
+        _handler = new CreateTipoDeIvaCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.InsertAsync(Arg.Any<TipoDeIva>(), Arg.Any<CancellationToken>()).Returns(42);
     }
 

tests/SIGCM2.Application.Tests/TiposDeIva/Deactivate/DeactivateTipoDeIvaCommandHandlerTests.cs

@@ -20,7 +20,7 @@ public class DeactivateTipoDeIvaCommandHandlerTests
 
     public DeactivateTipoDeIvaCommandHandlerTests()
     {
-        _handler = new DeactivateTipoDeIvaCommandHandler(_repo, _audit);
+        _handler = new DeactivateTipoDeIvaCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.SetActivoAsync(Arg.Any<int>(), Arg.Any<bool>(), Arg.Any<CancellationToken>()).Returns(true);
     }

tests/SIGCM2.Application.Tests/TiposDeIva/NuevaVersion/NuevaVersionTipoDeIvaCommandHandlerTests.cs

@@ -34,7 +34,7 @@ public class NuevaVersionTipoDeIvaCommandHandlerTests
 
     public NuevaVersionTipoDeIvaCommandHandlerTests()
     {
-        _handler = new NuevaVersionTipoDeIvaCommandHandler(_repo, _audit);
+        _handler = new NuevaVersionTipoDeIvaCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakePredecesora());
         _repo.UpdateCierreVigenciaAsync(Arg.Any<int>(), Arg.Any<DateOnly>(), Arg.Any<CancellationToken>())
              .Returns(true);

tests/SIGCM2.Application.Tests/TiposDeIva/Reactivate/ReactivateTipoDeIvaCommandHandlerTests.cs

@@ -20,7 +20,7 @@ public class ReactivateTipoDeIvaCommandHandlerTests
 
     public ReactivateTipoDeIvaCommandHandlerTests()
     {
-        _handler = new ReactivateTipoDeIvaCommandHandler(_repo, _audit);
+        _handler = new ReactivateTipoDeIvaCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.SetActivoAsync(Arg.Any<int>(), Arg.Any<bool>(), Arg.Any<CancellationToken>()).Returns(true);
     }

tests/SIGCM2.Application.Tests/TiposDeIva/Update/UpdateTipoDeIvaCommandHandlerTests.cs

@@ -35,7 +35,7 @@ public class UpdateTipoDeIvaCommandHandlerTests
 
     public UpdateTipoDeIvaCommandHandlerTests()
     {
-        _handler = new UpdateTipoDeIvaCommandHandler(_repo, _audit);
+        _handler = new UpdateTipoDeIvaCommandHandler(_repo, _audit, TimeProvider.System);
         _repo.GetByIdAsync(1, Arg.Any<CancellationToken>()).Returns(MakeEntity());
         _repo.UpdateCosmeticoAsync(Arg.Any<int>(), Arg.Any<string>(), Arg.Any<string>(),
                                    Arg.Any<bool>(), Arg.Any<bool>(), Arg.Any<CancellationToken>())

tests/SIGCM2.Application.Tests/Usuarios/DeactivateUsuarioCommandHandlerTests.cs

@@ -17,7 +17,7 @@ public class DeactivateUsuarioCommandHandlerTests
 
     public DeactivateUsuarioCommandHandlerTests()
     {
-        _handler = new DeactivateUsuarioCommandHandler(_repo, _refreshRepo, _audit);
+        _handler = new DeactivateUsuarioCommandHandler(_repo, _refreshRepo, _audit, TimeProvider.System);
         _repo.CountActiveAdminsAsync(Arg.Any<CancellationToken>()).Returns(2);
     }
 

tests/SIGCM2.Application.Tests/Usuarios/ReactivateUsuarioCommandHandlerTests.cs

@@ -16,7 +16,7 @@ public class ReactivateUsuarioCommandHandlerTests
 
     public ReactivateUsuarioCommandHandlerTests()
     {
-        _handler = new ReactivateUsuarioCommandHandler(_repo, _audit);
+        _handler = new ReactivateUsuarioCommandHandler(_repo, _audit, TimeProvider.System);
     }
 
     private static Usuario MakeUser(int id = 5, bool activo = false)

tests/SIGCM2.Application.Tests/Usuarios/ResetUsuarioPasswordCommandHandlerTests.cs

@@ -18,7 +18,7 @@ public class ResetUsuarioPasswordCommandHandlerTests
 
     public ResetUsuarioPasswordCommandHandlerTests()
     {
-        _handler = new ResetUsuarioPasswordCommandHandler(_repo, _hasher, _refreshRepo, _audit);
+        _handler = new ResetUsuarioPasswordCommandHandler(_repo, _hasher, _refreshRepo, _audit, TimeProvider.System);
         _hasher.Hash(Arg.Any<string>()).Returns(args => "$2a$12$hashof_" + args[0]);
     }
 

tests/SIGCM2.Application.Tests/Usuarios/UpdateUsuarioCommandHandlerTests.cs

@@ -20,7 +20,7 @@ public class UpdateUsuarioCommandHandlerTests
 
     public UpdateUsuarioCommandHandlerTests()
     {
-        _handler = new UpdateUsuarioCommandHandler(_repo, _rolRepo, _refreshRepo, _audit);
+        _handler = new UpdateUsuarioCommandHandler(_repo, _rolRepo, _refreshRepo, _audit, TimeProvider.System);
 
         // Default: rol exists and is active
         _rolRepo.ExistsActiveByCodigoAsync(Arg.Any<string>(), Arg.Any<CancellationToken>()).Returns(true);