icalendar-implementations

2008-07-13T15:33:22Z

OloviCorco: ousitracd

chiacel
<h1> iCalendar implementations </h1>
{{TOC-right}}
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.

== 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 ===
[http://www.mozilla.org/projects/calendar/sunbird.html 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 <code>UID</code>, <code>DTSTAMP</code>, and <code>METHOD</code> properties. ('''citation/platform/date tested info needed'''). If any of the three is not present, returns this message:

<pre>
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.
</pre>

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

No such restriction is placed on [[rfc-2445#vCalendar|vCalendar 1.0]] events. So, if <code>VERSION:1.0</code> is output instead of <code>VERSION:2.0</code>, the only required field is <code>DTSTART</code>.
Note that <code>VERSION</code> property may be omitted. In this case, value inferred as <code>1.0</code>.

* UID and DTSTAMP is required for Outlook to import. [[User:GeoffWebb|GeoffWebb]] 14:03, 9 Dec 2005 (PST)

===== MSOutlook2k3 sample importable iCalendar =====
<pre>
BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
UID:0
DTSTAMP:20060601T080000
DTSTART:20060601T080000
END:VEVENT
END:VCALENDAR
</pre>

===== MSOutlook2k3 sample importable vCalendar =====
<pre>
BEGIN:VCALENDAR
BEGIN:VEVENT
DTSTART:20060601T080000
END:VEVENT
END:VCALENDAR
</pre>

== notes ==
* the "webcal:" URL protocol scheme is non-standard.

== contributors==
* Tantek Ãelik
* [[DimitriGlazkov|Dimitri Glazkov]]

== related pages ==
{{hcalendar-related-pages}}

Microformats Wiki - User contributions [en]

icalendar-implementations