diff --git a/lib/parallelIO/NerscIO.h b/lib/parallelIO/NerscIO.h
index 595588dd..a442f20b 100644
--- a/lib/parallelIO/NerscIO.h
+++ b/lib/parallelIO/NerscIO.h
@@ -83,7 +83,7 @@ inline void NerscMachineCharacteristics(NerscField &header)
   std::time_t t = std::time(nullptr);
   std::tm tm = *std::localtime(&t);
   std::ostringstream oss; 
-  oss << std::put_time(&tm, "%c %Z");
+  //  oss << std::put_time(&tm, "%c %Z");
   header.creation_date = oss.str();
   header.archive_date  = header.creation_date;