diff --git a/lib/services/tools.dart b/lib/services/tools.dart
index 91ffde2..0fdc3dd 100644
--- a/lib/services/tools.dart
+++ b/lib/services/tools.dart
@@ -4,3 +4,7 @@ String getEnumValueName<T extends Enum>(T value) {
   name = name[0].toUpperCase() + name.substring(1);
   return name;
 }
+
+String durationToFormattedString(Duration duration) {
+  return '${duration.inHours}h ${duration.inMinutes % 60}m';
+}