BEGIN:VCALENDAR
PRODID:-//Test//
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Europe/Moscow
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0300
TZNAME:MSK
DTSTART:19700101T000000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:d2240999-ab22-410e-97e9-8f562cb87d03
SUMMARY:T03
DESCRIPTION:with Z/TZID/VTIMEZONE. without VALUE
DTSTART;TZID=Europe/Moscow:20151103T120000Z
DTEND;TZID=Europe/Moscow:20151103T130000Z
END:VEVENT
END:VCALENDAR