BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250727T163632
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:69ea4a9017156
DTSTAMP:20260423T163632Z
SUMMARY:Istanbul
DTSTART:20260606T170000Z
DTEND:20260606T170000Z
END:VEVENT
END:VCALENDAR