diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 458c5fb7d0dcca..bcee2bab0b81aa 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -496,7 +496,7 @@ def __init__(self, *args, **kwargs):
 
     def usesTime(self):
         fmt = self._fmt
-        return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_format) >= 0
+        return fmt.find('$asctime') >= 0 or fmt.find(self.asctime_search) >= 0
 
     def validate(self):
         pattern = Template.pattern