diff --git a/libcob/common.h b/libcob/common.h
index c01965e..ae03c64 100644
--- a/libcob/common.h
+++ b/libcob/common.h
@@ -337,7 +337,7 @@ only usable with COB_USE_VC2013_OR_GREATER */
 #define daylight	_daylight
 #endif /* __BORLANDC__ */
 
-#ifdef __ORANGEC__
+#if defined(__ORANGEC__) || defined(_UCRT)
 #define timezone		_timezone
 #define tzname			_tzname
 #define daylight		_daylight
