Teams is showing file timestamps not matching the user's time zone

Hi Mabesoone, N. (Nico),

I understand that file timestamps in Microsoft Teams are not matching the users’ time zone. The checks you’ve already performed are absolutely valid. In addition, you may try the following:

1/ Check user’s regional settings

For files stored in SharePoint or OneDrive, the timestamp display can depend on the user’s regional settings. Please ask affected users to:

• Open a file in Teams > click “Open in SharePoint”
• Go to Settings > Site settings
• Select Language and Region
• Verify the Time Zone
• If the time zone is incorrect, please update it to the correct one. You may also try switching to a different time zone and then back to the correct one, and allow some time for the change to take effect.
• Alternatively, they can access it directly via: https://<yourtenant>-my.sharepoint.com/_layouts/15/regionalsetng.aspx

After updating, please refresh Teams, or reopen the Files tab to check

2/ Clear the Teams cache

If the issue only occurs in the desktop app, clearing the cache can help. Please follow the official guidance from Microsoft: https://learn.microsoft.com/en-us/troubleshoot/microsoftteams/teams-administration/clear-teams-cache

3/ Test with a new file

To determine whether the issue is related to existing file metadata or current display behavior, you can:

• Upload a new file
• Modify it
• Check the timestamp in Teams

I hope the information above is helpful. If you have any further questions, please feel free to reach out.

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