BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20260128T080341
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6addb7dd5b263
DTSTAMP:20261025T080341Z
SUMMARY:Istanbul
DTSTART:20270327T180000Z
DTEND:20270327T180000Z
END:VEVENT
END:VCALENDAR