Index: roclcdr/impl/tools/schedules.c
--- roclcdr/impl/tools/schedules.c.orig
+++ roclcdr/impl/tools/schedules.c
@@ -50,7 +50,7 @@ static Boolean isHourlyInRange(iILcDriverInt inst, iON
   int     hours    = 0;
   int     mins     = 0;
 
-  long modeltime = data->model->getTime( data->model );
+  time_t modeltime = data->model->getTime( data->model );
   struct tm* ltm;
 
   ltm = localtime( &modeltime );
@@ -214,7 +214,7 @@ Boolean checkScheduleTime( iILcDriverInt inst, const c
     /* check if the schedule index is correct: */
     while( entry != NULL ) {
       if( idx == scheduleIdx ) {
-        long modeltime = data->model->getTime( data->model );
+        time_t modeltime = data->model->getTime( data->model );
         struct tm* ltm;
         int modelminutes    = 0;
         int scheduleminutes = 0;