diff --git a/cis/public/freebusy_lvplan.php b/cis/public/freebusy_lvplan.php
index e9773ccde..37de685ab 100755
--- a/cis/public/freebusy_lvplan.php
+++ b/cis/public/freebusy_lvplan.php
@@ -47,12 +47,12 @@ echo "BEGIN:VCALENDAR\n";
 echo "VERSION:2.0\n";
 echo "PRODID:-//FHCOMPLETE//EN\n";
 echo "METHOD:PUBLISH\n";
+echo "BEGIN:VFREEBUSY\n";
 echo 'ORGANIZER;CN=',$bn->vorname,' ',$bn->nachname,':mailto:',$uid,'@',DOMAIN,"\n";
 echo 'DTSTAMP;TZID=Europe/Vienna:',date('Ymd', mktime(date('H'),date('i'),date('s'),date('m'),date('d')-5,date('Y'))),'T',date('Hms'),"\n";
 echo 'DTSTART;TZID=Europe/Vienna:',date('Ymd', mktime(0,0,0,date('m'),date('d')-5,date('Y'))),"T000000\n";
 echo 'DTEND;TZID=Europe/Vienna:',date('Ymd', mktime(0,0,0,date('m'),date('d')+30,date('Y'))),"T000000\n";
 echo 'URL:',APP_ROOT,'cis/public/freebusy_lvplan.php/',$uid,"\n";
-echo "BEGIN:VFREEBUSY";
 
 // Stundenplanobjekt erzeugen
 $stdplan = new wochenplan($type);
diff --git a/include/ical.class.php b/include/ical.class.php
index 5d71431b1..53fae9dd7 100755
--- a/include/ical.class.php
+++ b/include/ical.class.php
@@ -104,8 +104,8 @@ class ical extends basis_db
 						$doppelpunktpos = mb_strpos($row, ':');
 						$row = mb_substr($row, $doppelpunktpos+1);
 						$slashpos = mb_strpos($row, '/');
-						$dtstart = mb_substr($row, 0, $slashpos);
-						$dtend = mb_substr($row, $slashpos+1);
+						$dtstart = $this->ConvertTimezoneUTC(mb_substr($row, 0, $slashpos));
+						$dtend = $this->ConvertTimezoneUTC(mb_substr($row, $slashpos+1));
 						$this->dtresult[]=array('dtstart'=>trim($dtstart),'dtend'=>trim($dtend));
 						
 						$dtstart = $this->ConvertTimezoneUTC($dtstart);
@@ -115,6 +115,18 @@ class ical extends basis_db
 						$dtend='';
 					}
 				}
+				elseif($typ=='LVPLAN')
+				{
+					// Freebusy Eintrag mit UTC Timestamps
+					if(mb_strstr($row,'FREEBUSY:'))
+					{
+						$dtstart = $this->ConvertTimezoneUTC(mb_substr($row,9,17));
+						$dtend = $this->ConvertTimezoneUTC(mb_substr($row,27));
+						$this->result[$idx].='FREEBUSY:'.$dtstart.'/'.$dtend."\n";
+						$dtstart='';
+						$dtend='';
+					}
+				}
 				elseif(mb_strpos($row,'FREEBUSY')===0)
 				{
 					if(mb_strstr($row,'FREEBUSY:'))
@@ -166,7 +178,7 @@ class ical extends basis_db
 				$len = mb_strlen($row);
 				
 				$slashpos = mb_strpos($row, '/');
-				$dtstart = mb_substr($row, 0, $len-$slashpos);
+				$dtstart = mb_substr($row, 0, $len-$slashpos-1);
 				$dtend = mb_substr($row, $slashpos+1);
 				$dtstart = $this->ConvertTimezoneLocal(trim($dtstart));
 				$dtend = $this->ConvertTimezoneLocal(trim($dtend));
diff --git a/system/checksystem.php b/system/checksystem.php
index feefda20f..5fe67ca16 100644
--- a/system/checksystem.php
+++ b/system/checksystem.php
@@ -2568,7 +2568,7 @@ $tabellen=array(
 	"lehre.tbl_stundenplan"  => array("stundenplan_id","unr","mitarbeiter_uid","datum","stunde","ort_kurzbz","gruppe_kurzbz","titel","anmerkung","lehreinheit_id","studiengang_kz","semester","verband","gruppe","fix","updateamum","updatevon","insertamum","insertvon"),
 	"lehre.tbl_stundenplandev"  => array("stundenplandev_id","lehreinheit_id","unr","studiengang_kz","semester","verband","gruppe","gruppe_kurzbz","mitarbeiter_uid","ort_kurzbz","datum","stunde","titel","anmerkung","fix","updateamum","updatevon","insertamum","insertvon","ext_id"),
 	"lehre.tbl_vertrag"  => array("vertrag_id","person_id","vertragstyp_kurzbz","bezeichnung","betrag","insertamum","insertvon","updateamum","updatevon","ext_id","anmerkung","vertragsdatum"),
-	"lehre.tbl_vertrag_vertragsstatus"  => array("vertragsstatus_kurzbz","vertrag_id","uid","datum","ext_id","insertamum","insertvon","updateaum","updatevon"),
+	"lehre.tbl_vertrag_vertragsstatus"  => array("vertragsstatus_kurzbz","vertrag_id","uid","datum","ext_id","insertamum","insertvon","updateamum","updatevon"),
 	"lehre.tbl_vertragstyp"  => array("vertragstyp_kurzbz","bezeichnung"),
 	"lehre.tbl_vertragsstatus"  => array("vertragsstatus_kurzbz","bezeichnung"),
 	"lehre.tbl_zeitfenster"  => array("wochentag","stunde","ort_kurzbz","studiengang_kz","gewicht"),