diff --git a/ops-platform/src/utils/date.ts b/ops-platform/src/utils/date.ts
index f0f02ed..2fda186 100644
--- a/ops-platform/src/utils/date.ts
+++ b/ops-platform/src/utils/date.ts
@@ -1,7 +1,14 @@
 const TZ = 'Asia/Shanghai'
 
+function toUTC(value: string): string {
+  return /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}/.test(value) && !/[Z+\-]\d*$/.test(value)
+    ? value + 'Z'
+    : value
+}
+
 export function formatTime(value: string | number | null | undefined): string {
   if (value === null || value === undefined || value === '') return '-'
-  const date = new Date(value as string | number)
+  const input = typeof value === 'string' ? toUTC(value) : value
+  const date = new Date(input)
   return Number.isNaN(date.getTime()) ? '-' : date.toLocaleString('zh-CN', { timeZone: TZ })
 }
diff --git a/tenant-platform/src/utils/date.ts b/tenant-platform/src/utils/date.ts
index f0f02ed..9d98f5c 100644
--- a/tenant-platform/src/utils/date.ts
+++ b/tenant-platform/src/utils/date.ts
@@ -1,7 +1,17 @@
 const TZ = 'Asia/Shanghai'
 
+// Backend serializes LocalDateTime without timezone (Jackson time-zone: UTC).
+// Bare ISO strings like "2026-05-21T14:30:00" are treated as local time by browsers,
+// so we append 'Z' to force UTC parsing before converting to Beijing time.
+function toUTC(value: string): string {
+  return /^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}/.test(value) && !/[Z+\-]\d*$/.test(value)
+    ? value + 'Z'
+    : value
+}
+
 export function formatTime(value: string | number | null | undefined): string {
   if (value === null || value === undefined || value === '') return '-'
-  const date = new Date(value as string | number)
+  const input = typeof value === 'string' ? toUTC(value) : value
+  const date = new Date(input)
   return Number.isNaN(date.getTime()) ? '-' : date.toLocaleString('zh-CN', { timeZone: TZ })
 }