Why is our published Outlook calendar showing as 1899 in our website

David_Carol Rowatt 125 Reputation points
2025-02-10T16:57:34.4933333+00:00

Our outlook calendar looks fine in outlook but the shared link (html) that we use on our website is showing the calendar as 1899. We have not made any changes to our website so can only assume Microsoft has made some kind of update that has caused this?. How do we rectify or get Microsoft to resolve the issue?

If you click on Today then that takes you to the view that users should be seeing but obviously our users will not know to do that (and why should they)

Outlook | Windows | Classic Outlook for Windows | For business
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6 answers

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  1. Ryan Mills 5 Reputation points
    2025-02-10T22:09:31.4133333+00:00

    I'm having the same issue. The published calendar is coming up initially as 1899, and then we have one day (an all-day event) spanning multiple days.

    The only way I could fix the one-day span over multiple days was to set the start/end date to the same day and the start/end time to 12 a.m.

    1 person found this answer helpful.
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  2. ChristyA 6 Reputation points
    2025-02-13T15:54:49.3766667+00:00

    I have a ticket open with Microsoft and proved that it is an issue with the link. He did acknowledge that it was happening to him also. I'll let you know what I find out.

    Christy

    1 person found this answer helpful.

  3. Aakash Shah 6 Reputation points
    2025-02-28T02:14:51.8033333+00:00

    For anyone that has opened a ticket with Microsoft Support, please provide your case number. I just opened case #2502280040000098 and they have reported that they are not able to see other reports of this issue. It may get more attention if we can pool these support tickets together.

    Thanks.

    1 person found this answer helpful.
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  4. Matthew Cora 5 Reputation points
    2025-03-06T14:19:58.4066667+00:00

    I checked our calendar today, and it appears this issue has been resolved. Can anyone else confirm?

    1 person found this answer helpful.

  5. Dave Belson 0 Reputation points
    2025-02-12T06:59:59.25+00:00

    One thing that worked for me having this same issue - albeit not a solution - is when you visit the page and it defaults to 1899, if you refresh the browser page / F5 it will actually go to the correct date in the calendar.

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