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icloudicalendarrfc5545

Weird datetime format in iCloud calendar

I'm currently working on displaying dates from ical format (fetched via caldav from iCloud). However, the datetime formats aren't consistant, sometimes I get an VEVENT like the following:

BEGIN:VEVENT
...
DTSTART;TZID=Europe/Berlin:Mond marc 2013 T-001020350 (TIV)
DTEND;TZID=Europe/Berlin:20130315T120000
END:VEVENT

The DTSTART datetime doesn't make sense to me. Is there any documentation on how to interpret that kind of datetime?

Solution

  • It does not make sense indeed. It does not comply to RFC5545 so the server should have rejected it.

    The only sane thing to do in my opinion is to try to track down the client that generated this and get them to fix their bug. In general, this is indicated by the PRODID property value, although servers sometime rewrite those.