JEM for Joomla4 shows incorrectly formatted times

Here's what the front end shows:

Here's what's in the settings page by default:


Seems the function being used, strftime, is depreciated in php 8.1.

My site, , is running Joomla ver 4.2.8 with PHP ver 8.0.28

I looked at the php manual, but I can't see where the formatting is wrong. Any ideas?

Will be changed in new version
Chabge manually to H:i

A propos; deprecated is never ab error, it only says later on there will be an error!