BEGIN:VCALENDAR
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
DTSTART:19810329T010000
TZNAME:BST
TZOFFSETTO:+0100
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
DTSTART:19961027T020000
TZNAME:GMT
TZOFFSETTO:+0000
END:STANDARD
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VERSION:2.0
PRODID:-//BoxStuff//CRM 1.0.0//EN
CALSCALE:Gregorian
BEGIN:VEVENT
DTSTART;TZID=Europe/London:20250525
DTEND;TZID=Europe/London:20250526
DESCRIPTION:
DTSTAMP;TZID=Europe/London:20250316T170939
CREATED;TZID=Europe/London:20250316T170939
LAST_MODIFIED;TZID=Europe/London:20250316T170939
SUMMARY:Spring 10, 11, 12
UID:e3f77dc2-24aa-4a2b-8137-d8ec2d6fcda4
END:VEVENT
END:VCALENDAR