Sleep wake schedule settings gone

I have a Mac mini and a MBP. I often travel (at least weekly) and have the home Mac mini set to come on at certain times of the day (for a short time) and then go off again - just incase there are any files that I need to access from home (the Mac mini is connected to a 10TB HDD).

This has worked well and when travelling to different timezones, I'd automatically change the times on the Mac mini that it would turn on and off to suit where I'd be - and I'd just connect to it from my MBP using Jump Desktop.

That was until MacOS Ventura and the settings have disappeared?

The Mac mini still turns off and on again at a bizarre time (just due to the timezone I was travelling in at the last time it was set.)

Is there any way to get access to these settings again? Ventura clearly supports it as the Mac still turns off and on each day - I just need to change the times!

Any help much appreciated!