Event Types in iCalendar/Chandler/Scooby/iCal

The differences between "normal" events, any time, point-in-time and all day events are somewhat confusing, so I am documenting what I know right here in as clear a manner as possible.

Here is how the different types of events render in Chandler:

Here is what Apple's iCal does with the same events:

Here is what the iCalendar resources that Chandler created look like:

All Day Event

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//PYVOBJECT//NONSGML Version 1//EN
BEGIN:VEVENT
UID:7ea995cc-611a-11da-a881-0014516403fe
DTSTART;VALUE=DATE:20051128
SUMMARY:ALL DAY EVENT
END:VEVENT
END:VCALENDAR

Normal Event

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//PYVOBJECT//NONSGML Version 1//EN
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:STANDARD
DTSTART:20001029T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:America/New_York
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20000402T020000
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
TZNAME:America/New_York
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:907532a2-6129-11da-a81b-0014516403fe
DTSTART;TZID=America/New_York:20051128T074500
DTEND;TZID=America/New_York:20051128T084500
SUMMARY:Normal
END:VEVENT
END:VCALENDAR

Any Time

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//PYVOBJECT//NONSGML Version 1//EN
BEGIN:VEVENT
UID:18b71f32-6129-11da-a81b-0014516403fe
DTSTART;X-OSAF-ANYTIME=TRUE;VALUE=DATE:20051129
SUMMARY:Any Time
END:VEVENT
END:VCALENDAR

Point In Time

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//PYVOBJECT//NONSGML Version 1//EN
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:STANDARD
DTSTART:20001029T020000
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:America/New_York
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20000402T020000
RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=4
TZNAME:America/New_York
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:97ef819a-6129-11da-a81b-0014516403fe
DTSTART;TZID=America/New_York:20051129T074500
SUMMARY:Point in time
END:VEVENT
END:VCALENDAR