### Steps to reproduce

1. The general settings in the Administration - Calendars and dates - Date format: The "Date" is set to default. The settings for "Week starts on" and "First week in year contains" are both set to "Based on user's language"

2. Login as a user with permission to manage time entries

3. Go to the My time tracking page

4. Switch to "Month" and "List" view


### What is the buggy behavior?

* "This week" is shown as calendar week 41 but it is actually calendar week 42 already


### What is the expected behavior?

1. Begin of the insertionWeek rangesEnd of the insertion Begin of the deletion The correct calendar weekEnd of the deletion should be Begin of the insertionshown as titles instead of calendar weeksEnd of the insertion Begin of the deletion shown End of the deletion


### Screenshots and other files

<img class="image_resized op-uc-image op-uc-image_inline" style="width:418px;" src="/api/v3/attachments/791467/content">

### Environment information

**OpenProject installation type**

* Hosted cloud edition

* On-premises edition, version 16.4.1