BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//gyrobase/iCalendar//NONSGML v1.0//EN
BEGIN:VEVENT
DTSTART:20130521T160000
DTEND:20130521T200000
RRULE:FREQ=DAILY;INTERVAL=1;UNTIL=20130620
SUMMARY:1/2 price wings
END:VEVENT
END:VCALENDAR