"The game is on Friday."
Translation:El partido es el viernes.
What I want to know is whether or not it is even proper to use an equivalent preposition for "on" when it comes to any event happening on a certain day. Is that simply a non-existent usage in Spanish? Alternatly, what if I wanted to say "The game is at 2:00PM on Friday?" Is there an equivalent for "at" in translation at least?