BEGIN:VCALENDAR PRODID:-//hacksw/handcal//NONSGML v1.0//EN BEGIN:VEVENT DTSTART;TZID=Europe/Berlin:20170901T100000 DTEND;TZID=Europe/Berlin:20170901T123000 LOCATION: SUMMARY:Test Event 1 DESCRIPTION: METHOD:PUBLISH END:VEVENT END:VCALENDAR