[local calendar]: Time selector changes on date change.

[SkeLLLa]

Checklist

• [X] I have updated to the latest available Home Assistant version.
• [X] I have cleared the cache of my browser.
• [X] I have tried a different browser to see if it is related to my browser.

Describe the issue you are experiencing

When I try to add new event to local calendar from my Home Assistant app selected start and end time changes whenever new date in the datepicker is selected. I was able to reproduce it in HA app, as well as on mobile in Firefox browser. The behavior is the same in both cases, so I consider that this bug is somewhere in frontend.

Describe the behavior you expected

Time and date doesn't change after they were set to some value. If that behavior is triggered by "autofix" for negative intervals (when start time of event is after end time), then possibly it should be some checkbox to prevent that autofix.

Steps to reproduce the issue

1. Maybe important precondition: Set your device timezone to a different one than configured in HA
2. Go to local calendar and add new event
3. Enter 12:00 to event start time
4. Change the start date of event
5. Observe that time in timepicker had changed.
6. Repeat 3-5 steps and see that it continue changing. ...

See video for details: https://drive.google.com/file/d/1OFnjTVxoq92g3MwN0kkr-_z-2WuwoPfy/view?usp=sharing

What version of Home Assistant Core has the issue?

core-2022.12.1, frontend 20221208.0 core-2022.12.4, frontend 20221212.0

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue with?

Firefox mobile 107.2.0, Chrome desktop 108.0.5359.71, Firefox desktop

Which operating system are you using to run this browser?

Android, Linux

State of relevant entities

No response

Problem-relevant frontend configuration

No response

Javascript errors shown in your browser console/inspector

No response

Additional information

No response

[SkeLLLa]

UPD: if browser timezone is set to the same as HA instance, the bug is not reproduced.

[github-actions[bot]]

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