Date picker has incorrect date when editing and date format is NOT YYYY-MM-DD

[russellshome]

Which Umbraco version are you using? (Please write the exact version, example: 10.1.0)

10..8.2

Bug summary

When datepicker is configured to display the date in a format such as DD/MM/YYYY or MM/DD/YYYY (i.e. not YYYY-MM-DD) then when editing the date, the date shown in the calendar is not the date shown above.

Specifics

Steps to reproduce

Create a new Data Type using the Date Picker editor Set the date format to DD/MM/YYYY Create a Document Type that has a property with the Data Type that was created Add Content with that Document Type Set the value of the date to 15/12/2023 Save & publish content Reload the page Click the calendar icon

Expected result / actual result

Expected Outcome:

• The calendar should show the date that was entered

Actual Outcome/Issue

• The calendar shows 1 Jan of the year of the date.

[github-actions[bot]]

Hi there @russellshome!

Firstly, a big thank you for raising this issue. Every piece of feedback we receive helps us to make Umbraco better.

We really appreciate your patience while we wait for our team to have a look at this but we wanted to let you know that we see this and share with you the plan for what comes next.

• We'll assess whether this issue relates to something that has already been fixed in a later version of the release that it has been raised for.
• If it's a bug, is it related to a release that we are actively supporting or is it related to a release that's in the end-of-life or security-only phase?
• We'll replicate the issue to ensure that the problem is as described.
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We wish we could work with everyone directly and assess your issue immediately but we're in the fortunate position of having lots of contributions to work with and only a few humans who are able to do it. We are making progress though and in the meantime, we will keep you in the loop and let you know when we have any questions.

Thanks, from your friendly Umbraco GitHub bot :robot: :slightly_smiling_face:

[Zeegaan]

Sounds like this is a duplicate of https://github.com/umbraco/Umbraco-CMS/issues/13403, can you confirm this? 🙈

[russellshome]

It seems to be a closely related issue. That issue indicates an incorrect initial date whereas the issue I have is that the initial date is correct but the date when editing is not.