Calendar displayWeekNumbers are wrong?
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- JavaScript
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Description
**Describe the bug**
The week numbers displayed on the calendar are not correct.
**Expected behavior**
The week numbers should be +1
So that for this week : 2025-10-13 it is week number 42 not 41
https://www.epochconverter.com/weeks/2025
**Information**
- Day.js Version [e.g. v2.1.1]
- OS: [Windows]
- Browser [e.g. chrome 141]
- Time zone: [e.g. UTC + 2 Paris Time)]
Thanks to all contributors and if someone has an idea please help
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