Files in the OneDrive recycle bin show "Invalid date"

Something is clearly broken on the M365 web server as I've just seen the same problem with a completely different client (i.e. different M365 tenant) AND computer. Will have to wait I suspect until Microsoft fix the bug on the web app.

Good day @Rob Nicholson and thank you for bringing this up.

Just to gently clarify, this is a user‑to‑user support forum. I’m not part of the Microsoft product or engineering teams, and I don’t have visibility into backend systems. That said, based on my own research and similar experiences shared by other users, I do hope I can contribute a small perspective for your reference.

What you’re seeing could be a web UI rendering issue specific to the OneDrive for Business recycle bin, particularly when accessed through browsers like Edge. In these cases, the file itself is usually fine, but the web interface struggles to interpret the “Deleted” timestamp and ends up displaying it as “Invalid date.” This tends to happen when the metadata for that field is missing, null, or not handled cleanly by the web layer.

What makes your observation especially telling is that the dates appear correctly everywhere else. Those clients rely on different ways of reading or falling back on metadata, so they don’t hit the same limitation that the OneDrive web experience does. Clearing the recycle bin also wouldn’t really change the outcome if newly deleted items are still being processed in the same way behind the scenes.

If you haven’t already, it may be worth clearing Edge’s cache and cookies and then signing back into OneDrive, just to rule out anything local. Trying the same view in Chrome or Firefox can also help confirm whether this is browser-specific. If the behavior still persists there, I’d strongly encourage submitting feedback through OneDrive · Community. This channel is one that the OneDrive engineering team tends to monitor more closely, especially when multiple users share similar feedback.

I know it’s not ideal to come across something that “looks wrong,” even when your data itself is safe. Hopefully this is something that gets polished on the web experience side soon. Thank you very much for taking the time to raise this, and if there’s anything you’d like to discuss further or add, please feel free to comment on this post.

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This behavior is a web-only display issue with the OneDrive recycle bin, not a problem with the actual deletion timestamps or data retention. Since the dates are correct in:

• Windows 11 Recycle Bin in File Explorer
• OneDrive mobile app
• SharePoint/M365 group recycle bins

it confirms that the items are being deleted and retained correctly; only the OneDrive web UI is failing to render the date.

Because the context does not provide a client-side fix for this specific UI bug, the supported recovery and verification options are:

1. Verify retention and recovery still work
   • Deleted OneDrive items are kept in the OneDrive Recycle Bin for 30 days for personal accounts and 93 days for work or school accounts, unless the admin changes the setting.
   • Items can still be restored from the recycle bin or from the site collection recycle bin if needed, even if the web UI shows “Invalid date”.
2. Use alternative views to confirm dates
   • Use File Explorer (Windows Recycle Bin or synced OneDrive folder) to check deletion or modification dates.
   • For OneDrive for work or school (backed by SharePoint), a SharePoint site collection administrator can use the site Recycle Bin and the site collection Recycle Bin to view and restore items with correct timestamps.
3. If items ever appear missing or corrupted
   • Follow the documented recovery flow for SharePoint/OneDrive for work or school:
     • Check the Recycle Bin (and second-stage/site collection Recycle Bin).
     • If not found, use “Restore your OneDrive” or “Restore a shared library” to roll back to a previous point in time.
     • If recovery is still not possible, an administrator can contact Microsoft Support. SharePoint Online retains backups of all content for 14 additional days beyond deletion, and Microsoft Support can restore a site collection within that window.
4. When to contact support
   • If the “Invalid date” display persists across browsers and devices and interferes with compliance or auditing needs, the next step is to open a support ticket so Microsoft can investigate the OneDrive web UI issue in the tenant.

Data safety and retention are governed by the backend (SharePoint/OneDrive) and not by the web display of the date, so the “Invalid date” text does not by itself indicate data loss.

References:

• Delete or restore files from your OneDrive recycle bin in Android, iOS, or Windows mobile
• Delete items or empty the Recycle Bin of a SharePoint site
• Restore deleted items from the site collection recycle bin
• How to recover missing, deleted or corrupted items in SharePoint and OneDrive for work or school