BEGIN:VCALENDAR
BEGIN:VTIMEZONE
TZID:Europe/Berlin
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20181003T100000
DTEND;TZID=Europe/Berlin:20181003T120000
DESCRIPTION:Event recurring on wednesday each week, except on 2018-10-29
SUMMARY:Recurring Event
RRULE:FREQ=WEEKLY;BYDAY=MO
EXDATE;TZID=Europe/Berlin:20181029T100000
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Berlin:20180601T100000
DTEND;TZID=Europe/Berlin:20180601T120000
DESCRIPTION:Event recurring on friday each week, except on 2018-06-08/22
SUMMARY:Recurring Event
RRULE:FREQ=WEEKLY;BYDAY=FR
EXDATE;TZID=Europe/Berlin:20180608T100000
EXDATE;TZID=Europe/Berlin:20180622T100000
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20181030
DTEND;VALUE=DATE:20181031
DESCRIPTION:All-day event recurring on tuesday each week
SUMMARY:Recurring All-day Event
RRULE:FREQ=WEEKLY;BYDAY=TU
END:VEVENT
END:VCALENDAR