icalendar-implementations: Difference between revisions

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<h1> iCalendar implementations </h1>
<h1> iCalendar implementations </h1>
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This is a list of calendar programs, applications and services that support the iCalendar [[RFC2445]] standard.
This is a list of calendar programs, applications and services that support the iCalendar {{RFC2445}} standard.


In addition, please note any quirks or bugs with implementations' handling of iCalendar - we've already discovered some in the development of [[hcalendar|hCalendar]] and proxies like X2V.
In addition, please note any quirks or bugs with implementations' handling of iCalendar - we've already discovered some in the development of [[hcalendar|hCalendar]] and proxies like X2V.

Revision as of 17:56, 7 January 2008

iCalendar implementations

This is a list of calendar programs, applications and services that support the iCalendar RFC2445 standard.

In addition, please note any quirks or bugs with implementations' handling of iCalendar - we've already discovered some in the development of hCalendar and proxies like X2V.

services

Google Calendar

http://calendar.google.com/

  • supports subscribing to "webcal:" and "http:" URLs to iCalendar

products

Apple iCal

Apple iCal application aka iCal.app.

  • platform: OSX
  • handles "webcal:" URLs and supports subscribing to events.

KOrganizer

  • platforms: All Linux, *BSD, etc. (Wherever KDE runs)
  • supports the "webcal:" protocol, as well as "http:", "ftp:", "fish:", etc.

Evolution

  • platform: Fedora Core 3
  • supports "webcal:" protocol

Sunbird

Mozilla Sunbird

  • platforms: Windows XP, others?
  • supports "webcal:" protocol

Microsoft Outlook

Microsoft Outlook 2007

Microsoft Outlook 2007 (MSOutlook2k7)

  • platforms: Windows
  • supports importing and subscribing to .ics files, "webcal:" URLs, etc.

Microsoft Outlook 2003

Microsoft Outlook 2003 (MSOutlook2k3)

  • platforms: Windows
  • supports importing .ics files
MSOutlook2k3 general comments

For importing, MSOutlook2k3 apparently requires VEVENTS to have UID, DTSTAMP, and METHOD properties. (citation/platform/date tested info needed). If any of the three is not present, returns this message:

This error can appear if you have attempted to save a recurring Lunar appointment in iCalendar format.
To avoid this error, set the appointment option to Gregorian instead of Lunar.

After some testing, this seems to be the generic message to indicate a problem with event import.

No such restriction is placed on vCalendar 1.0 events. So, if VERSION:1.0 is output instead of VERSION:2.0, the only required field is DTSTART. Note that VERSION property may be omitted. In this case, value inferred as 1.0.

MSOutlook2k3 sample importable iCalendar
BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
UID:0
DTSTAMP:20060601T080000
DTSTART:20060601T080000
END:VEVENT
END:VCALENDAR
MSOutlook2k3 sample importable vCalendar
BEGIN:VCALENDAR
BEGIN:VEVENT
DTSTART:20060601T080000
END:VEVENT
END:VCALENDAR

notes

  • the "webcal:" URL protocol scheme is non-standard.

contributors

related pages

This specification is a work in progress. As additional aspects are discussed, understood, and written, they will be added. These thoughts, issues, and questions are kept in separate pages.