diff --git a/task.c b/task.c
index 396f782d..6497dd5f 100644
--- a/task.c
+++ b/task.c
@@ -526,7 +526,7 @@ char *TaskDescription(pTaskHead it)
 
   length = strlen(result);
   tm = localtime((const time_t *)&it->start_time);
-  strftime(result+length,100,"%F-%k-%m-%S",tm);
+  strftime(result+length,100,"%F-%H-%M-%S",tm);
   length = strlen(result);
   snprintf(result+length,120-20,"|%ld", it->lID);
   length = strlen(result);