### Steps to reproduce

1. Go to QA edge on desktop

2. Go to any WP Begin of the insertionwithEnd of the insertion Begin of the deletion withoutEnd of the deletion a Begin of the deletion date, add aEnd of the deletion date and Begin of the insertiontapEnd of the insertion Begin of the deletion save

3. Observe date format

4. Now do the sameEnd of the deletion on Begin of the insertion(x)End of the insertion Begin of the deletion mobile SafariEnd of the deletion


### What is the buggy behaviour?

* Date Begin of the insertionpicker reopensEnd of the insertion Begin of the deletion formats are differentEnd of the deletion

Begin of the insertionTapping on 'Reset' doesn't delete the input

End of the insertion <br>


### What is the expected behaviour?

1. Begin of the insertionUser can delete a dateEnd of the insertion Begin of the deletion Date formats are the same on both clientsEnd of the deletion

<br>


###

### Screenshots and other files

Begin of the insertionVideo attached in Files tab

End of the insertion Begin of the deletion Desktop


<img class="op-uc-image op-uc-image_inline" src="/api/v3/attachments/389988/content">


Mobile



End of the deletion ### Environment information

**OpenProject version**

Core build

[92649fdc71de40ac93283ddaa25cb70230452ae2](https://github.com/opf/openproject/commits/92649fdc71de40ac93283ddaa25cb70230452ae2)

Product version

[4b55c8485559fa6ad277e54aea2b97536297836d](https://github.com/opf/saas-openproject/commits/4b55c8485559fa6ad277e54aea2b97536297836d)

Core version

OpenProject 15.5.0

**Browser**

* [ ] Chrome
* [ ] Firefox
* [ ] Safari
* [x] Mobile Safari
* [ ] Other (please specify)

**Operating System**

* [ ] Windows
* [ ] Mac OS X
* [x] Mobile iOS
* [ ] Mobile Android
* [ ] Linux (please specify distro)
* [ ] Chrome OS
* [ ] Other (please specify)