BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20251122T220051
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a86279384f89
DTSTAMP:20260819T220051Z
SUMMARY:Hayato Sumino
DTSTART:20270110T190000Z
DTEND:20270110T190000Z
END:VEVENT
END:VCALENDAR