fix: datetime

src/api/config/query-client.ts

@@ -47,7 +47,7 @@ export const queryClient = new QueryClient({
       staleTime: API_QUERY_STALE_TIME,
       gcTime: API_QUERY_GC_TIME,
       refetchOnWindowFocus: false,
-      refetchOnMount: false,
+      refetchOnMount: "always",
       refetchOnReconnect: false,
       placeholderData: (previousData: unknown) => previousData,
       retry(failureCount, error) {

src/app/admin/news/[id]/_components/admin-news-form-content.tsx

@@ -65,7 +65,7 @@ import {
   slugifyAdminNews,
 } from "@/lib/utils/admin-news";
 import { normalizeUser } from "@/lib/utils/cms-user";
-import { normalizeDateTimeInput } from "@/lib/utils/datetime";
+import { normalizeDateTimeInput, toIsoWithLocalOffset } from "@/lib/utils/datetime";
 import { parsePostContent, parseLegacyPostContent } from "@/lib/utils/post-content";
 import links from "@/links";
 import type { HeaderCategoryTreeItem } from "@/api/vcci-news/types/header-config";
@@ -607,16 +607,16 @@ export function AdminNewsFormContent() {
         is_featured: form.type === "tintuc" ? form.is_featured : false,
         is_hidden: form.is_hidden,
         is_active: !form.is_hidden,
-        published_at: form.published_at || null,
-        expired_at: form.expired_at || null,
-        started_at: form.started_at || null,
-        ended_at: form.ended_at || null,
-        registration_deadline: form.registration_deadline || null,
+        published_at: toIsoWithLocalOffset(form.published_at),
+        expired_at: toIsoWithLocalOffset(form.expired_at),
+        started_at: toIsoWithLocalOffset(form.started_at),
+        ended_at: toIsoWithLocalOffset(form.ended_at),
+        registration_deadline: toIsoWithLocalOffset(form.registration_deadline),
         location: form.location.trim() || null,
         participation_fee: form.participation_fee.trim() || null,
         event_dates: (form.event_dates ?? []).length > 0 ? form.event_dates : null,
         release_mode: form.published_at ? "SCHEDULED" : "NOW",
-        release_at: form.published_at || null,
+        release_at: toIsoWithLocalOffset(form.published_at),
         content_structure: {
           post_content: form.post_content.map((section, index) => ({
             ...section,

src/lib/utils/datetime.ts

+import dayjs from "dayjs";
+
 /**
- * Normalize a datetime string for use in datetime-local inputs.
- * Trims to 16 characters (YYYY-MM-DDTHH:mm) if longer.
+ * Normalize a datetime string from the API (ISO 8601, e.g. "2026-10-22T03:00:00.000Z")
+ * for use in datetime-local inputs: convert to the browser's local timezone
+ * and format as YYYY-MM-DDTHH:mm.
  */
 export function normalizeDateTimeInput(value?: string | null): string {
   if (!value) return "";
-  return value.length >= 16 ? value.slice(0, 16) : value;
+  const parsed = dayjs(value);
+  return parsed.isValid() ? parsed.format("YYYY-MM-DDTHH:mm") : "";
+}
+
+/**
+ * Convert a datetime-local value (YYYY-MM-DDTHH:mm) to an ISO string that
+ * carries the browser's UTC offset (e.g. "2026-10-22T10:00:00+07:00"), so the
+ * backend parses the intended instant regardless of the server's timezone.
+ */
+export function toIsoWithLocalOffset(value?: string | null): string | null {
+  if (!value) return null;
+  const parsed = dayjs(value);
+  return parsed.isValid() ? parsed.format() : null;
 }