BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20061211T190000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20140620;BYDAY=MO
SUMMARY:Monday night chess
END:VEVENT
END:VCALENDAR