BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
DTSTART:20250330T020000
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:BST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20251026T010000
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:GMT
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BEGIN:VEVENT
DTSTAMP:20260510T163142Z
UID:90-s-silent-disco
DTSTART;TZID=Europe/London:20250926T194500
DTEND;TZID=Europe/London:20250926T230000
LOCATION:Liverpool Cathedral\, Saint James Road\, Liverpool\, L1 7AZ\, Live
 rpool 
SUMMARY:90's Silent Disco!
END:VEVENT
END:VCALENDAR