BEGIN:VCALENDAR
VERSION:1.0
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20090601T050000Z
DTEND:20090601T050100Z
SUMMARY:Summer I Begins
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20090706T050000Z
DTEND:20090706T050100Z
SUMMARY:Independence Day Holiday
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20090710T050000Z
DTEND:20090710T050100Z
SUMMARY:Summer I Ends
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20090713T050000Z
DTEND:20090713T050100Z
SUMMARY:Summer II Begins
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20090821T050000Z
DTEND:20090821T050100Z
SUMMARY:Summer II Ends
END:VEVENT
END:VCALENDAR