SharePoint List Date Picker UI Not Rendering All Dates in Add New Item Form

Question

SharePoint List Date Picker UI Not Rendering All Dates in Add New Item Form

Adam Hurley 25

As seen in the following image, is there a noted bug that is impacting the UI from rendering all available dates in the date picker for a SharePoint date/time column?

How do I fix this issue?

User's image

Dean 5 Reputation points

2026-06-11T11:42:00.0866667+00:00

I resolved this by navigating to Settings > List Settings and clicking the relevant date column under the Columns section. This opens the Edit Column area. Here, I just toggled the "Display Format" from Standard to Friendly and back to Standard and then saved. The date picker now shows the full calendar days.
Anonymous

2026-06-11T11:54:58.89+00:00

Hi @Dean,

Thank you so much for sharing this. I truly hope it will help fix this interface-related issue for other users experiencing the same problem.
Sian Milne 5 Reputation points

2026-06-11T17:13:26.3066667+00:00

@Dean Thank you, this worked for me (at least for now)

Answer accepted by question author

Anonymous

Hi @Adam Hurley,

Thank you for sharing your issue here.

Recently, there have been several similar reports from other users in the community experiencing the same behavior. The initial assumption is that this could be related to a recent UI or rendering issue within SharePoint, rather than something misconfigured on your side.

You may find it helpful to take a look at a similar discussion that I responded to earlier, as it may include some temporary workarounds you can try: Sharepoint list Add item column type Date and Time not showing all the days - Microsoft Q&A

In parallel, I’d strongly recommend submitting feedback directly to the SharePoint feedback portal.

User's image This helps the product team become aware of the issue, and other users experiencing the same problem can upvote it to increase visibility. Once you’ve posted it, feel free to share the link here. I’d be happy to upvote it as well to help get more attention.

Just to be transparent, this is a user-to-user support forum, so I’m also an end user like yourself and don’t have access to backend tools or your specific environment. That said, I’m doing my best to share what I’ve seen and guide you toward the most relevant next steps.

If possible, you may also consider clicking “Accept answer” on my response so our thread can be pinned and highlighted automatically for others. This makes it easier for users facing the same issue to find useful references, contribute additional insights, and either support your feedback or submit their own.

Thank you again for your understanding and cooperation.

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Your answer

Dean 5 Reputation points

2026-06-11T11:42:00.0866667+00:00

I resolved this by navigating to Settings > List Settings and clicking the relevant date column under the Columns section. This opens the Edit Column area. Here, I just toggled the "Display Format" from Standard to Friendly and back to Standard and then saved. The date picker now shows the full calendar days.
Anonymous

2026-06-11T11:54:58.89+00:00

Hi @Dean,

Thank you so much for sharing this. I truly hope it will help fix this interface-related issue for other users experiencing the same problem.
Sian Milne 5 Reputation points

2026-06-11T17:13:26.3066667+00:00

@Dean Thank you, this worked for me (at least for now)

Answer 1

There is no documented SharePoint Online bug in the provided context that matches the behavior shown in the screenshot. The context only covers:

General guidance for date picker controls in Windows apps and InfoPath forms.
A specific DateTimePicker formatting issue on Windows 7/Windows Server 2008 R2.
Modern list view compatibility issues caused by hidden site features or customized forms.

From the available information, the only directly applicable SharePoint guidance is that modern list forms can fail to render correctly when:

A hidden site feature is enabled that blocks modern experience.
The list form page has been customized.

To remediate rendering issues in modern list forms, the documented steps are:

Ensure the modern experience is enabled for the site by disabling the hidden feature via PowerShell:

   $UserCredentials = Get-Credential
   Connect-PnPOnline -Url https://YourTenant.sharepoint.com/sites/SiteCollectionUrl -Credentials $UserCredentials
   Disable-PnPFeature -Identity 52E14B6F-B1BB-4969-B89B-C4FAA56745EF -Scope Web

If the form page has been customized, reset it to the site definition:
1. Go to Site Actions → Site Settings.
2. Open Reset to site definition (/_layouts/15/reghost.aspx).
3. Select the customized form page.
4. Reset it.

If the issue persists after confirming the site is using the modern experience and the form page is not customized, further investigation outside the provided documentation would be required.

References:

SharePoint Online Lists and Libraries Modern View Compatibility check