BEGIN:VCALENDAR
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=GMT:20110131
DTEND;TZID=GMT:20110131
RRULE:FREQ=MONTHLY;BYDAY=SU,MO,TU,WE,TH,FR,SA;BYSETPOS=-1;WKST=SU
SEQUENCE:0
SUMMARY:pay the rent
CLASS:PUBLIC
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR