diff --git a/openmp/runtime/tools/message-converter.py b/openmp/runtime/tools/message-converter.py
index a493d64c1692d..5e2aeba6c99d6 100644
--- a/openmp/runtime/tools/message-converter.py
+++ b/openmp/runtime/tools/message-converter.py
@@ -11,7 +11,6 @@
 #
 
 import argparse
-import datetime
 import os
 import platform
 import re
@@ -188,11 +187,10 @@ def insert_header(f, data, commentChar="//"):
     f.write(
         "{0} Do not edit this file! {0}\n"
         "{0} The file was generated from"
-        " {1} by {2} on {3}. {0}\n\n".format(
+        " {1} by {2}. {0}\n\n".format(
             commentChar,
             os.path.basename(data.filename),
             os.path.basename(__file__),
-            datetime.datetime.now().ctime(),
         )
     )