Setup working time doesn't save starting time

Hello,

At Setup working time you must select start time and end time. Start time I put on 09:00 and end time on 21:00.
I click on save .
The end time is being saved.
The start time jumps back to 00:00 all the time.

What do I do wrong?

Best regards, Hein

Hi Hein,
I have answered you through ticket system
Thanks
Dam