I'm waiting for 8am, then feed + walk the dogs, then I'll go back to bed for 1h or a bit more (tops), and it'll still be early when I wake up again. Most of my colleagues will show up around 10 with bleary eyes while I've done most of the stuff I wanted to do already!
... So that gives me a lot of time for a good walk, or tinkering etc in the afternoon.
I used to be a 'night owl' really, going to bed at 2am; but I realized I was never really terribly efficient until about lunchtime the following day, while I was also wasting my time in the evening for no real reason. AND wasting the short winter day at my desk.
Nowadays, well, I got the whole day to myself!