Always in the morning. I don't feel ready for the day unless I've showered, and I also work out first thing in the morning so I'm usually in need of a shower after that. There are times when I shower or bathe at night for relaxation purposes, but I prefer to shower in the morning for hygiene.
Depends on my schedule. Usually at night because I get up quite early for work.
If I have the day off I'll likely sleep in and shower when I wake up. If I have plans I'll shower beforehand so my hair isn't a wreck, and if I'm working out/swimming/whatever I could end up showering at any random time of day.
Showering in the morning feels good, but honestly I'm too lazy to do it early most of the time. So most of my showers are later in the day or at night.
I shower in the morning before school. I hate sleeping with wet hair, it's very uncomfortable. I can't blow dry my hair either, it has to air dry so it's easier in the mornings.
usually at night since my daily rhythm is a little weird, 1pm-5am, though on the weekends when it's a little more normal/when i'm going out i shower in the morning.
Depends on when I feel like it, if I do it too close to when I am going to sleep (which is usually the morning) then I will be mad forever because wet hair is not fun, especially when your hair weighs a million pounds bone dry, and takes 5 years to fully dry.