energy saver schedule

Hello, I hope someone can help me. I've upgraded to Ventura 13.0.1, which resulted in the disappearance of the energy saver schedule feature. Before the upgrade, my iMac was set to switch off at a certain time. Now I don't want it to do this anymore, but there is no way for me to change this schedule since the feature is gone. I would appreciate any advice as to how to deal with this. Thank you.