diff --git a/src/gcal-event-widget.c b/src/gcal-event-widget.c
index 0dfa545b..e1c728ad 100644
--- a/src/gcal-event-widget.c
+++ b/src/gcal-event-widget.c
@@ -731,7 +731,12 @@ gcal_event_widget_new_from_data (GcalEventData *data)
 
   start_is_date = date->is_date == 1;
   if (!start_is_date)
-    *date = icaltime_convert_to_zone (*(dt.value), e_cal_util_get_system_timezone ());
+    {
+      if (dt.tzid != NULL)
+        dt.value->zone = icaltimezone_get_builtin_timezone_from_tzid (dt.tzid);
+      *date = icaltime_convert_to_zone (*(dt.value),
+                                        e_cal_util_get_system_timezone ());
+    }
 
   gcal_event_widget_set_date (event, date);
   e_cal_component_free_datetime (&dt);
@@ -745,7 +750,12 @@ gcal_event_widget_new_from_data (GcalEventData *data)
 
       end_is_date = date->is_date == 1;
       if (!end_is_date)
-        *date = icaltime_convert_to_zone (*(dt.value), e_cal_util_get_system_timezone ());
+        {
+          if (dt.tzid != NULL)
+            dt.value->zone = icaltimezone_get_builtin_timezone_from_tzid (dt.tzid);
+          *date = icaltime_convert_to_zone (*(dt.value),
+                                            e_cal_util_get_system_timezone ());
+        }
 
       gcal_event_widget_set_end_date (event, date);
       e_cal_component_free_datetime (&dt);