Calendar: Time only mode does not work

[Ancient-Dragon]

Describe the bug

When I try to use time only mode, the date is shown. I wouldn't expect the date to be shown as well.

Reproducer

https://primevue.org/calendar/#time

PrimeVue version

3.42.0

Vue version

3.x

Language

ALL

Build / Runtime

Vite

Browser(s)

No response

Steps to reproduce the behavior

View the documentation page and use the time only calendar, select a time and see that the date is there.

Expected behavior

When I click on a time the date does not appear. This is regression from 3.38.1 which used to work as expected.

[Ancient-Dragon]

This PR is the problem: #4901

[Ancient-Dragon]

Looks like the changes to formatDateTime are the problem in that PR, by reverting those changes I was able to get it working again with timeOnly mode

[Ancient-Dragon]

@tugcekucukoglu let me know if you want me to push changes / make the PR.

[tugcekucukoglu]

Sorry, I did not see your comments. You could always send PR, we'll gratefully review it.

[rstainsby]

This PR is the problem: #4901

Apologies, this PR was never intended to be merged in it's current state, I only created it to help triage another issue