Dolphin, how to let it show locale time format

Dolphin seems to not respect the time format display as configured in 
Region & Language - Time.

This appears to be a bug in KDE Plasma 6 as delivered with Trixie.
If it can be configured in the Region & Language settings, then it is to 
be expected that at least all apps coming delivered by the KDE project 
respect this setting. What else should this configuration setting be 
useful for?!

Do you know a workaround to get Dolphin using the wished format for Date 
and Time displays? While I have the language set to en_US, I need the 
time displayed in ISO format or a locale format!