diff --git a/impatient b/impatient
index 7fa8ff7..b285cf7 100755
--- a/impatient
+++ b/impatient
@@ -80,7 +80,7 @@ else:
 def current_val():
     result = current_val_helper()
     if log_file:
-        print('{},{}'.format(datetime.datetime.now(datetime.timezone.utc), result), file=log_file)
+        print('{},{}'.format(datetime.datetime.now().strftime("%Y-%m-%dT%H:%M:%S"), result), file=log_file)
     return result
 
 if args.final: