BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
DTSTART:20270328T020000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20261025T010000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:GMT
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20261102T224512Z
UID:pub-quiz-and-karaoke-i-m-working-late-cause-i-m-a-singer
DTSTART;TZID=Europe/London:20261102T190000
DTEND;TZID=Europe/London:20261102T230000
LOCATION:The Den & Terrace\, BS8 1LX
SUMMARY:Pub Quiz and Karaoke: I'm Working Late\, 'Cause I'm a Singer!
END:VEVENT
END:VCALENDAR