diff --git a/internlm/utils/common.py b/internlm/utils/common.py
index 6d7f7b2..6c9cc68 100644
--- a/internlm/utils/common.py
+++ b/internlm/utils/common.py
@@ -118,7 +118,7 @@ def filter_kwargs(func, kwargs):
 def launch_time():
     global CURRENT_TIME
     if not CURRENT_TIME:
-        CURRENT_TIME = datetime.now().strftime("%m-%d:%H:%M:%S")
+        CURRENT_TIME = datetime.now().strftime("%m-%d-%H:%M:%S")
     return CURRENT_TIME