The word you want is whereas if you’re stressing contrast. While stresses simultaneity. “Hobbes had a dismal view of peoples nature, whereas not while Rousseau believed that guy had an all-natural feeling of shame.”
As an adjective, everyday (one word) means routine. Then you need two words, the adjective every and the noun time should you want to state that one thing took place on every successive time. Note the distinction in those two sentences: “Kant ended up being fabled for taking place similar constitutional during the exact same time every time.