BEGIN:VCALENDAR
VERSION:2.0
BEGIN:VEVENT
SUMMARY:All day
DTSTART;VALUE=DATE:20131003
DTEND;VALUE=DATE:20131004
END:VEVENT
BEGIN:VEVENT
SUMMARY:Two days
DTSTART;VALUE=DATE:20131003
DTEND;VALUE=DATE:20131005
END:VEVENT
BEGIN:VEVENT
SUMMARY:On day 1
DTSTART;VALUE=DATE:20131003
DTEND;VALUE=DATE:20131004
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
SUMMARY:On day 2
DTSTART;VALUE=DATE:20131003
END:VEVENT
END:VCALENDAR