diff --git a/inc/caldav-PUT-functions.php b/inc/caldav-PUT-functions.php
index 214e980b..ce17b41e 100644
--- a/inc/caldav-PUT-functions.php
+++ b/inc/caldav-PUT-functions.php
@@ -1495,9 +1495,6 @@ function write_resource( DAVResource $resource, $caldav_data, DAVResource $colle
   $calitem_params[':dtstart_orig'] = quote_dt_param($dtstart);
 
   if ( empty($dtstart) ) $dtstart = $due;
-  if (isset($dtstart) && preg_match("/^1[0-8][0-9][0-9][01][0-9][0-3][0-9]$/", $dtstart)) {
-     $dtstart = $dtstart . "T000000Z";
-  }
   $calitem_params[':dtstart'] = quote_dt_param($dtstart);
 
   $dtend = $first->GetPValue('DTEND');
@@ -1505,9 +1502,6 @@ function write_resource( DAVResource $resource, $caldav_data, DAVResource $colle
 
   if ( isset($dtend) && $dtend != '' ) {
     dbg_error_log( 'PUT', ' DTEND: "%s", DTSTART: "%s", DURATION: "%s"', $dtend, $dtstart, $first->GetPValue('DURATION') );
-    if (preg_match("/^1[0-8][0-9][0-9][01][0-9][0-3][0-9]$/", $dtend)) {
-       $dtend = $dtend . "T000000Z";
-    }
     $calitem_params[':dtend'] = quote_dt_param($dtend);
     $dtend = ':dtend';
   }