BEGIN:VCALENDAR
VERSION:1.0
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20070604T050000Z
DTEND:20070604T050100Z
SUMMARY:Summer I Begins
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20070704T050000Z
DTEND:20070704T050100Z
SUMMARY:Independence Day Holiday
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20070713T050000Z
DTEND:20070713T050100Z
SUMMARY:Summer I Ends
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20070716T050000Z
DTEND:20070716T050100Z
SUMMARY:Summer II Begins
END:VEVENT
BEGIN:VEVENT
CATEGORIES:MISCELLANEOUS
DTSTART:20070824T050000Z
DTEND:20070824T050100Z
SUMMARY:Summer II Ends
END:VEVENT
END:VCALENDAR