If you want Illustrator to do this correctly you have to change it in Windows settings (if you use Windows)
Control panel > clock and region > change date, time or number formats > additional settings: and swap the period and the comma there.
You can also change the entire formatting in settings > region but this will also change your time formatting to "1:00 PM" instead of "13:00", for example.
This fixed it for me! Hopefully it helps others as well.
If you want Illustrator to do this correctly you have to change it in Windows settings (if you use Windows)
Control panel > clock and region > change date, time or number formats > additional settings: and swap the period and the comma there.
You can also change the entire formatting in settings > region but this will also change your time formatting to "1:00 PM" instead of "13:00", for example.
This fixed it for me! Hopefully it helps others as well.