diff --git a/calendar/lib.php b/calendar/lib.php
index 39704f0..1540e85 100644
--- a/calendar/lib.php
+++ b/calendar/lib.php
@@ -3128,7 +3128,7 @@ function calendar_import_icalendar_events($ical, $courseid, $subscriptionid = nu
     if (isset($ical->properties['X-WR-TIMEZONE'][0]->value)) {
         $timezone = $ical->properties['X-WR-TIMEZONE'][0]->value;
     } else {
-        $timezone = 'UTC';
+        $timezone = date_default_timezone_get();
     }
     foreach ($ical->components['VEVENT'] as $event) {
         $res = calendar_add_icalendar_event($event, $courseid, $subscriptionid, $timezone);