BEGIN:VCALENDAR
PRODID:-//Mozilla.org/NONSGML Mozilla Calendar V1.1//EN
VERSION:2.0
BEGIN:VEVENT
UID:event
SUMMARY:Event 1
DTSTART:20130901T190000
DTEND:20130901T200000
END:VEVENT
BEGIN:VEVENT
UID:EVENT
SUMMARY:Event 2
DTSTART:20130901T200000
DTEND:20130901T210000
END:VEVENT
END:VCALENDAR