diff --git a/src/gribapi_utilities.c b/src/gribapi_utilities.c
index b333723d877c3570009b0c296c639e6ce98b9018..5a4860220647b0cb9e32ff17c70a5d6f7fc05c5f 100644
--- a/src/gribapi_utilities.c
+++ b/src/gribapi_utilities.c
@@ -300,6 +300,7 @@ char* gribMakeTimeString(grib_handle* gh, CdiTimeType timeType)
   date.tm_mday = (int)gribGetLong(gh, "day");
   date.tm_hour = (int)gribGetLong(gh, "hour");
   date.tm_min = (int)gribGetLong(gh, "minute");
+  date.tm_isdst = 0;
 
   if(gribEditionNumber(gh) == 1)
     {