BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130205
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140523;BYDAY=1TU
SUMMARY:Rock Overtime
END:VEVENT
END:VCALENDAR