The official servers have a scheduled restart once per day at 5 am local time. However, this is oftentimes not enough. When we reach hours late into the evening / night the servers oftentimes completely crash leaving everyone unable to connect, or they get stuck in a bad state (where you can’t attack, jump, stamina doesn’t regenerate, etc.). After the 5 am restart the servers always function well again.
Therefore, I am hereby suggesting to add a second scheduled restart at 5 pm or so. The extra restart would be a small inconvenience compared to the frustration caused by not being able to play on your server for the entire evening/ night.