Please consider update Tempus Dominus library to the latest version.
The current one, 6.2.10 has a lot of errors with Internationalization.
The latest version for this library is 6.7.7
Sure, we will update it in the next update of Metronic.
We just tried the latest Tempus Dominus v6.7.7 and it worked well without any changes in the Metronic customization scss code for Tempus Dominus.
You just need to update it in
"@eonasdan/tempus-dominus": "^6.7.7" and try to run
yarn task and recompile the assets with