### Begin of the deletion Before filing a report

_Before you file a report, please ensure you are running the latest version of OpenProject and_ 
_have searched for similar bug reports._

###End of the deletion Steps to reproduce

Begin of the deletion _Please write down the steps to reproduce. Try to write down all necessary preconditions (what permissions do you have, are other users involved?). Example:_

End of the deletion 1. Begin of the insertionHave system clock configured with a timezone with a negative offset (for instance EDT like in New York is UTC-4)

2. End of the insertion Login as an admin into cloud 15.4.

Begin of the insertion3.End of the insertion Begin of the deletion 2.End of the deletion Go to any random task in any project

Begin of the insertion4.End of the insertion Begin of the deletion 3.End of the deletion Click on date field

Begin of the insertion5.End of the insertion Begin of the deletion 4.End of the deletion Switch to "manual"

Begin of the insertion6.End of the insertion Begin of the deletion 5.End of the deletion Set duration to "1" or anything else

Begin of the insertion7.End of the insertion Begin of the deletion 6.End of the deletion Select any date to set the start date via the date picker, for example, March 19, 2025

Begin of the insertion8.End of the insertion Begin of the deletion 7.End of the deletion alternatively: type date into start date manually, for example, "03/19/2025"


### What is the buggy behavior?

Begin of the deletion _Please describe the bug in as much detail as possible. Example:_

End of the deletion * The date picker is off 1+ days

* Typed dates just change to another date. System refuses to accept date typed.


### What is the expected behavior?

Begin of the deletion _Describe how the application should behave like. Example:_

End of the deletion 1. Correct date selected by the date picker or typed in manually should be accepted


### Begin of the deletion Important note

_Please note that unless you are a contributor to OpenProject, you can no longer edit this bug report after saving. You can still add new comments, new images and upload attachments though, but updating description or modifying fields will not be possible after saving. Please make sure that all necessary information and attachments are added, and the following attributes are set:_

### **Logs**

_Are there errors in the browser console? (_[_Click here for information on how to open your browser's console_](https://webmasters.stackexchange.com/a/77337)_) For a local installation: Are there relevant logs output by_ `_openproject logs_` _(packaged installation) (_[_click here for details_](https://docs.openproject.org/installation-and-operations/operation/monitoring/#show-logs)_) or in a log/production.log or /var/log/openproject/ ? Please attach error output in these log files if applicable_

###End of the deletion Screenshots and other files

Begin of the insertionAttached video.End of the insertion Begin of the deletion _If you have screenshots of the application's bug behavior or other relevant files, please drag them into this place or attach them using the "Files" section._End of the deletion

### Environment information

Begin of the deletion _Please check and fill out the following details to help us identify in what versions and distributions of OpenProject the error occurs_

End of the deletion **OpenProject installation Begin of the insertiontype and version**End of the insertion Begin of the deletion type**End of the deletion

* v 15.4. via the cloud


Begin of the deletion **OpenProject version**

_If you're not running on the cloud edition, please specify the version of OpenProject you're running. Example: v12.1.5_

End of the deletion **Browser**

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

**Operating System**

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

**Language**

English