BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260514T160330Z
UID:9ea4a4e3-56c2-4c52-ba44-12222b9cebcb
DTSTART;VALUE=DATE:20241021
DTEND;VALUE=DATE:20241022
SUMMARY:Teacher only day
END:VEVENT
END:VCALENDAR