BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
DTSTART:20180325T020000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20181028T010000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:GMT
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260413T065138Z
UID:silence-of-the-lacrimal-glands-opsoc-halloween-2018
DTSTART;TZID=Europe/London:20181022T200000
DTEND;TZID=Europe/London:20181023T030000
LOCATION:n/a
SUMMARY:Silence of the Lacrimal Glands - OPSOC Halloween 2018
END:VEVENT
END:VCALENDAR