BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20121128T183000
DTEND:20121128T203000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140518;BYDAY=4WE
SUMMARY:Open Mic
END:VEVENT
END:VCALENDAR