BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
DTSTART:20260329T020000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
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BEGIN:STANDARD
DTSTART:20261025T010000
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BEGIN:VEVENT
DTSTAMP:20260406T115728Z
UID:mystery-trip-abroad
DTSTART;TZID=Europe/London:20260525T000000
DTEND;TZID=Europe/London:20260531T000000
LOCATION:Bristol Airport
SUMMARY:Mystery Trip Abroad 
END:VEVENT
END:VCALENDAR