BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20251024T125823
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a5f6cef5cbfa
DTSTAMP:20260721T125823Z
SUMMARY:Istanbul
DTSTART:20270506T170000Z
DTEND:20270506T170000Z
END:VEVENT
END:VCALENDAR