fixed date issue v1

apps/Frontend/src/utils/dateUtils.ts

@@ -84,13 +84,23 @@ export function formatLocalDate(input?: string | Date): string {
   if (input instanceof Date) {
     if (isNaN(input.getTime())) return "";
 
-    // ALWAYS use the local calendar fields for Date objects.
+    // HYBRID LOGIC:
-    // This avoids day-flips when a Date was constructed from an ISO instant
+    // - If this Date was likely created from an ISO instant at UTC midnight
-    // and the browser's timezone would otherwise show a different calendar day.
+    //   (e.g. "2025-10-15T00:00:00Z"), then getUTCHours() === 0 but getHours()
-    const y = input.getFullYear();
+    //   will be non-zero in most non-UTC timezones. In that case use UTC date
-    const m = `${input.getMonth() + 1}`.padStart(2, "0");
+    //   parts to preserve the original calendar day.
-    const d = `${input.getDate()}`.padStart(2, "0");
+    // - Otherwise use the local calendar fields (safe for local-midnight Dates).
-    return `${y}-${m}-${d}`;
+    const utcHours = input.getUTCHours();
+    const localHours = input.getHours();
+    const useUTC = utcHours === 0 && localHours !== 0;
+
+    const year = useUTC ? input.getUTCFullYear() : input.getFullYear();
+    const month = useUTC ? input.getUTCMonth() + 1 : input.getMonth() + 1;
+    const day = useUTC ? input.getUTCDate() : input.getDate();
+
+    const m = `${month}`.padStart(2, "0");
+    const d = `${day}`.padStart(2, "0");
+    return `${year}-${m}-${d}`;
   }
 
   return "";
@@ -166,7 +176,6 @@ export function formatDateToHumanReadable(dateInput?: string | Date): string {
   return "Invalid Date";
 }
 
-
 // ---------------- OCR Date helper --------------------------
 /**
  * Convert any OCR numeric-ish value into a number.