BEGIN:VCALENDAR
PRODID:-//eluceo/ical//2.0/EN
VERSION:2.0
CALSCALE:GREGORIAN
BEGIN:VEVENT
UID:6cefb054c99ef2c1c9bb6366d9ca1bdc
DTSTAMP:20260404T064346Z
SUMMARY:Dzień Otwartych Zabytków
DESCRIPTION:
DTSTART;VALUE=DATE:20190907
END:VEVENT
END:VCALENDAR