Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

I choose date format:

but I see everywhere date notation in the United States format

Describe the behavior you expected

Displaying the date in the selected format

Steps to reproduce the issue

everywhere

What version of Home Assistant Core has the issue?

2024.11.2

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue with?

Google Chrome Version 131.0.6778.70 (Official Build) (64-bit)

Which operating system are you using to run this browser?

Windows 11

State of relevant entities

No response

Problem-relevant frontend configuration

No response

Javascript errors shown in your browser console/inspector

No response

Additional information

No response