diff --git a/frontend/mobile-app/lib/features/contract_signing/presentation/pages/contract_signing_page.dart b/frontend/mobile-app/lib/features/contract_signing/presentation/pages/contract_signing_page.dart
index d21fd535..5bfde5a0 100644
--- a/frontend/mobile-app/lib/features/contract_signing/presentation/pages/contract_signing_page.dart
+++ b/frontend/mobile-app/lib/features/contract_signing/presentation/pages/contract_signing_page.dart
@@ -852,7 +852,8 @@ class _ContractSigningPageState extends ConsumerState<ContractSigningPage> {
   /// 格式化日期时间
   String _formatDateTime(DateTime? dateTime) {
     if (dateTime == null) return '-';
-    return '${dateTime.year}-${dateTime.month.toString().padLeft(2, '0')}-${dateTime.day.toString().padLeft(2, '0')} ${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
+    final local = dateTime.toLocal();
+    return '${local.year}-${local.month.toString().padLeft(2, '0')}-${local.day.toString().padLeft(2, '0')} ${local.hour.toString().padLeft(2, '0')}:${local.minute.toString().padLeft(2, '0')}';
   }
 
   /// 构建合同信息卡片
diff --git a/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_merge_detail_page.dart b/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_merge_detail_page.dart
index decc72e1..f3e67c99 100644
--- a/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_merge_detail_page.dart
+++ b/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_merge_detail_page.dart
@@ -711,12 +711,13 @@ class _PrePlantingMergeDetailPageState
         );
   }
 
-  /// 格式化日期时间
+  /// 格式化日期时间（UTC → 本地时区）
   String _formatDateTime(DateTime dt) {
-    return '${dt.year}-${dt.month.toString().padLeft(2, '0')}-'
-        '${dt.day.toString().padLeft(2, '0')} '
-        '${dt.hour.toString().padLeft(2, '0')}:'
-        '${dt.minute.toString().padLeft(2, '0')}';
+    final local = dt.toLocal();
+    return '${local.year}-${local.month.toString().padLeft(2, '0')}-'
+        '${local.day.toString().padLeft(2, '0')} '
+        '${local.hour.toString().padLeft(2, '0')}:'
+        '${local.minute.toString().padLeft(2, '0')}';
   }
 }
 
diff --git a/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_position_page.dart b/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_position_page.dart
index db46f247..2094d143 100644
--- a/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_position_page.dart
+++ b/frontend/mobile-app/lib/features/pre_planting/presentation/pages/pre_planting_position_page.dart
@@ -815,11 +815,12 @@ class _PrePlantingPositionPageState
     );
   }
 
-  /// 格式化日期时间
+  /// 格式化日期时间（UTC → 本地时区）
   String _formatDateTime(DateTime dt) {
-    return '${dt.year}-${dt.month.toString().padLeft(2, '0')}-'
-        '${dt.day.toString().padLeft(2, '0')} '
-        '${dt.hour.toString().padLeft(2, '0')}:'
-        '${dt.minute.toString().padLeft(2, '0')}';
+    final local = dt.toLocal();
+    return '${local.year}-${local.month.toString().padLeft(2, '0')}-'
+        '${local.day.toString().padLeft(2, '0')} '
+        '${local.hour.toString().padLeft(2, '0')}:'
+        '${local.minute.toString().padLeft(2, '0')}';
   }
 }
diff --git a/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_detail_page.dart b/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_detail_page.dart
index 5f2b70d5..808b6fb2 100644
--- a/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_detail_page.dart
+++ b/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_detail_page.dart
@@ -649,8 +649,9 @@ class _TransferDetailPageState extends ConsumerState<TransferDetailPage> {
   }
 
   String _formatDateTime(DateTime dt) {
-    return '${dt.year}-${dt.month.toString().padLeft(2, '0')}-${dt.day.toString().padLeft(2, '0')} '
-        '${dt.hour.toString().padLeft(2, '0')}:${dt.minute.toString().padLeft(2, '0')}';
+    final local = dt.toLocal();
+    return '${local.year}-${local.month.toString().padLeft(2, '0')}-${local.day.toString().padLeft(2, '0')} '
+        '${local.hour.toString().padLeft(2, '0')}:${local.minute.toString().padLeft(2, '0')}';
   }
 }
 
diff --git a/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_list_page.dart b/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_list_page.dart
index 9bd5e467..fe30c525 100644
--- a/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_list_page.dart
+++ b/frontend/mobile-app/lib/features/transfer/presentation/pages/transfer_list_page.dart
@@ -397,8 +397,9 @@ class _TransferListPageState extends ConsumerState<TransferListPage>
   }
 
   String _formatDateTime(DateTime dt) {
-    return '${dt.year}-${dt.month.toString().padLeft(2, '0')}-${dt.day.toString().padLeft(2, '0')} '
-        '${dt.hour.toString().padLeft(2, '0')}:${dt.minute.toString().padLeft(2, '0')}';
+    final local = dt.toLocal();
+    return '${local.year}-${local.month.toString().padLeft(2, '0')}-${local.day.toString().padLeft(2, '0')} '
+        '${local.hour.toString().padLeft(2, '0')}:${local.minute.toString().padLeft(2, '0')}';
   }
 }