location/time + 에/에서
에 is a particle used to mark location, time or other static situations.
에서 is used to mark locations where some action is happening.
에 roughly corresponds to ‘at,to,in,of,by’, and it usually attached to the location or situation it is marking.
에서 is used the same way, except an action or event is happening there.
집에 가요 = I am going to my home.
집에서 먹어요 = I eat at home.
몇시에 가요? = What time are you going?
한국에서 살아요. = I live in Korea.