There is no day or night, your head just slowly shrinks throughout the day and your bucket begins to slide down your face and covering your eyes, till 8 hours passes and then your head begins to expand and your bucket slowly rises past your eyes again.
Why do people wear their watches on their left wrist and not their right?
its to ensure the watch doesnt get stolen when they travel to india (in india, presenting something with your left hand is usually considered very offensive)