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How to Fix SharePoint Published Dates Suddenly Showing US Format
Question details
Users report that SharePoint Online published dates are displaying in the US date format across multiple sites, ignoring the configured regional settings.
- Product
- SharePoint Online
- Device & OS
- not provided
- Scenario
- Viewing published dates on SharePoint sites configured with non-US (e.g., United Kingdom) regional settings.
- Observed behavior
- Published dates have unexpectedly changed to the US format (MM/DD/YYYY) despite the site's regional settings being explicitly set to the United Kingdom (DD/MM/YYYY).
Verify your personal language and region settings in your Microsoft 365 profile, as personal preferences can occasionally override site-level regional configurations.
Check Microsoft 365 Service Health and Open a Support Request
Because the date format issue affects multiple sites globally regardless of regional settings, it is likely a backend service incident that requires Microsoft Support investigation.
Published dates normally follow the SharePoint Online site’s regional settings. When they fail to do so across multiple sites simultaneously, it typically indicates a server-side bug or an active service degradation in Microsoft 365.
Log in to the Microsoft 365 admin center as an administrator. Navigate to 'Health' > 'Service health' and look for any active advisories or incidents related to SharePoint Online formatting or regional settings.
If no relevant incident is listed on the dashboard, navigate to 'Support' > 'Help & support' in the admin center to create a new service request.
Explain that the published dates have reverted to US format despite UK regional settings. Be prepared to generate and provide HAR (HTTP Archive) web traffic logs, as Microsoft support engineers commonly request these to trace formatting discrepancies.
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Frequently Asked Questions
How do I verify the regional settings on my SharePoint site?
To check your site's regional settings, click the gear icon (Settings) in SharePoint, go to 'Site information', and select 'View all site settings'. Under 'Site Administration', click on 'Regional settings' to view and adjust your current Locale.
Why do SharePoint regional settings sometimes get ignored?
SharePoint may ignore regional settings due to backend syncing delays, recent tenant-level updates rolled out by Microsoft, or conflicts with an individual user's personal language and region profile in Microsoft 365.
Can personal settings override SharePoint site regional settings?
Yes. If a user modifies their personal language and region settings in their Delve profile or Microsoft 365 account settings, SharePoint will often prioritize those personal preferences over the site's default regional settings.
