Apple Business Connect: Can't set 12 AM closing time
In Apple Business Connect, if you operate a business that closes at midnight, there is no way to select "12AM" or "Midnight" as the closing time. You could actually open your store at 12 AM in the hours setting, but you cannot close it any later than 11:45 pm. My business is open 6 am to midnight, the closest I can get the hours set to is 6 am to 11:45 pm.
There are questions about this issue from years ago, it appears to never have been solved.