BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN CALSCALE:Gregorian BEGIN:VTIMEZONE TZID:Europe/London X-LIC-LOCATION:Europe/London BEGIN:DAYLIGHT TZOFFSETFROM:+0000 TZOFFSETTO:+0100 TZNAME:BST DTSTART:19700329T010000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:+0100 TZOFFSETTO:+0000 TZNAME:GMT DTSTART:19701025T020000 RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10 END:STANDARD END:VTIMEZONE BEGIN:VEVENT SUMMARY:Cultural Dress Day (October's Theme: Diversity) DTSTART;VALUE=DATE:20211014 DTEND;VALUE=DATE:20211015 END:VEVENT END:VCALENDAR