BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
BEGIN:VEVENT
DTSTAMP:20260601T174045Z
UID:81b3092c-51e9-4f92-aa39-9716b78281b4
DTSTART;VALUE=DATE:20250511
DTEND;VALUE=DATE:20250512
DESCRIPTION:Don't forget your Mum on Sunday !
SUMMARY:Mother's Day
END:VEVENT
END:VCALENDAR