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TZID:Europe/London
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DTSTART:20170326T020000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
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BEGIN:STANDARD
DTSTART:20161030T010000
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BEGIN:VEVENT
DTSTAMP:20260619T212851Z
UID:harry-potter-quiz-night-e951
DTSTART;TZID=Europe/London:20161101T190000
DTEND;TZID=Europe/London:20161101T220000
LOCATION:Our Place Bar + Kitchen 
SUMMARY:Harry Potter Quiz Night 
END:VEVENT
END:VCALENDAR