diff --git a/calendar/inc/class.calendar_boupdate.inc.php b/calendar/inc/class.calendar_boupdate.inc.php
index f86a4dfe0b..708e29faff 100644
--- a/calendar/inc/class.calendar_boupdate.inc.php
+++ b/calendar/inc/class.calendar_boupdate.inc.php
@@ -1321,6 +1321,7 @@ class calendar_boupdate extends calendar_bo
 						//error_log(__LINE__.': '.__METHOD__."(".array2string($event).") deleting alarm=".array2string($alarm).", $status=".array2string($alarm));
 					}
 				}
+				$alarm['time'] = $this->date2ts($alarm['time'],true);	// user to server-time
 			}
 		}
 		// update all existing alarm times, in case alarm got moved and alarms are not include in $event
@@ -1347,10 +1348,6 @@ class calendar_boupdate extends calendar_bo
 					}
 				}
 			}
-			foreach($event['alarm'] as $id => &$alarm)
-			{
-				$alarm['time'] = $this->date2ts($alarm['time'],true);	// user to server-time
-			}
 		}
 
 		// you should always update modification time (ctag depends on it!)