diff --git a/lib/modules/agent/views/navigation_card.dart b/lib/modules/agent/views/navigation_card.dart
index 886ae0cc9..0ad88dfe3 100644
--- a/lib/modules/agent/views/navigation_card.dart
+++ b/lib/modules/agent/views/navigation_card.dart
@@ -14,6 +14,22 @@ String formatDistance(String distanceStr) {
   }
 }
 
+String formatDuration(String secondsStr) {
+  int totalSeconds = int.tryParse(secondsStr) ?? 0;
+  Duration duration = Duration(seconds: totalSeconds);
+
+  int hours = duration.inHours;
+  int minutes = duration.inMinutes.remainder(60);
+  int seconds = duration.inSeconds.remainder(60);
+
+  List<String> parts = [];
+  if (hours > 0) parts.add('$hours小时');
+  if (minutes > 0) parts.add('$minutes分钟');
+  if (seconds > 0 || parts.isEmpty) parts.add('$seconds秒');
+
+  return parts.join('');
+}
+
 //导航卡片
 Widget navigationCard(
   BuildContext context, {