08:40
@Criggie It's has three modes: automatic (which means it will turn off/on at programmed times), off (so heating/hot water is turned off at the unit itself, but it still drains power) and "off at the wall".
Right now I have it on 'off' and manually turn it to automatic when the apartment gets too cold for me to be comfortable, because if I put it on automatic all the time it's even worse.
Can't imagine it would be freeze protection as it's not freezing here.