BEGIN:VCALENDAR
VERSION:2.0
PRODID:Microsoft Exchange Server 2010
BEGIN:VTIMEZONE
TZID:Tokyo Standard Time
BEGIN:STANDARD
DTSTART:16010101T000000
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:16010101T000000
TZOFFSETFROM:+0900
TZOFFSETTO:+0900
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BEGIN:VEVENT
DTSTAMP;TZID="Tokyo Standard Time":20170224T120000
DTSTART;TZID="Tokyo Standard Time":20170224T120000
DTEND;TZID="Tokyo Standard Time":20170224T123000
UID:blafoobar
SUMMARY:this is an event
END:VEVENT
END:VCALENDARD