Is it permitted to omit eating suhoor? Or to eat it after maghrib instead of early in the morning?

This is a question for people who live across equator, who has to work in morning, and who has maghrib really late and Saher very early, only 2-3 hours difference. Some people say that if you do Saher, before time it is permissible, as one have to wake up early to commute. E.g. if maghrib happens at 23:00 and saher happens at 3am or 2am. I can eat with intention of Saher after 23:00. Is it valid to do something like that? As I commute really far and have good walking distance.