BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130525T180000
RRULE:FREQ=DAILY;INTERVAL=1;UNTIL=20131130
SUMMARY:Art on First
END:VEVENT
END:VCALENDAR