BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130405T180000
DTEND:20130405T210000
RRULE:FREQ=MONTHLY;INTERVAL=1;UNTIL=20140520;BYDAY=1FR
SUMMARY:First Friday Raleigh
END:VEVENT
END:VCALENDAR