As someone has already mentioned, the AF has adopted the “AFFORGEN” model which is 4 distinct 6 month phases. You can plan on a deployed window 6 months out of every two years and expect to be gone more than that if AFFORGEN breaks down, world events occur, and the occasional good deal TDY.
As for days, I have found that 9-12 hours on a non-flying day is fairly normal and on flying days you can quickly exceed 12. Many days will be longer than 12, so you leave “early” when you can to try and give a little back to the fam.
Weekends are uncommon…but it occasionally happens.