BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:Asia/Shanghai
BEGIN:STANDARD
DTSTART:19910915T010000
TZOFFSETFROM:+0900
TZOFFSETTO:+0800
TZNAME:CST
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260608T214210Z
UID:a99dfb11-86cd-4054-836a-f4d0cc33900b
DTSTART;TZID=Asia/Shanghai:20250123T070000
DTEND;TZID=Asia/Shanghai:20250123T080000
ORGANIZER;CN='Kenny':mailto:kenny@outvizor.com
SUMMARY:My Event
END:VEVENT
END:VCALENDAR