Microsoft has acknowledged a current issue where the Outlook Calendar interface displays in English, even if another language is set. They are actively working on a fix, but there is no confirmed resolution timeline yet.

🧪 Temporary Workaround

If the issue persists, it may be related to your browser. Try the following:

Clear Microsoft Edge Cache:

1. Launch Microsoft Edge
2. Click the three dots (⋯) in the top-right corner
3. Go to History > ⋯ > Clear browsing data
4. Select Cached images and files, then click Clear now

This may help restore your language settings temporarily while Microsoft resolves the issue.