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Hi some Ical - files have no DTEND but DURATION . calculate the endtime from DTSTART + DURATION ( example : DTSTART : 20150628T080000Z DURATION : PT3H0M0 means 8:00 start time , end time = starttime plus 3 hours a day - > 11:00 clock )
I have some of them , for example
www.5gig.de
. But other use . I would have helped if the end date and time , the startdate and starttime would be so long either no Endataum or ending time is specified or duration is used .