diff --git a/frontend/src/lib/date-utils.ts b/frontend/src/lib/date-utils.ts
index 20991a30..71c7d963 100644
--- a/frontend/src/lib/date-utils.ts
+++ b/frontend/src/lib/date-utils.ts
@@ -1,7 +1,7 @@
-import { 
-    getLocalTimeZone, 
-    parseDate, 
-    parseTime, 
+import {
+    getLocalTimeZone,
+    parseDate,
+    parseTime,
     toCalendarDateTime,
     fromDate,
     now,
@@ -39,7 +39,8 @@ export function loadServerDate(isoStr: string | null | undefined): string {
         // Si incluye T es ISO completo, convertir a zona local
         if (isoStr.includes('T')) {
             const dateObj = new Date(isoStr);
-            return fromDate(dateObj, localTimeZone).toString();
+            const zonedDate = fromDate(dateObj, localTimeZone);
+            return `${zonedDate.year}-${String(zonedDate.month).padStart(2, '0')}-${String(zonedDate.day).padStart(2, '0')}`;
         }
         // Si no, asumir fecha plana YYYY-MM-DD
         return isoStr.substring(0, 10);
@@ -61,8 +62,8 @@ export function addDaysLocal(dateStr: string, days: number): string {
 }
 
 export function getCurrentLocalYear(): string {
-     const nowZoned = now(localTimeZone);
-     return String(nowZoned.year).slice(-2);
+    const nowZoned = now(localTimeZone);
+    return String(nowZoned.year).slice(-2);
 }
 
 export function getCurrentLocalDate(): string {
@@ -70,6 +71,6 @@ export function getCurrentLocalDate(): string {
 }
 
 export function getCurrentLocalTime(): string {
-     const nowZoned = now(localTimeZone);
-     return `${String(nowZoned.hour).padStart(2, '0')}:${String(nowZoned.minute).padStart(2, '0')}`;
+    const nowZoned = now(localTimeZone);
+    return `${String(nowZoned.hour).padStart(2, '0')}:${String(nowZoned.minute).padStart(2, '0')}`;
 }