Is it ok to eat dinner after 7:00 pm when trying to lose belly fat if i have a job that works late at nights?

I think that you are doing everything right. But it is better for you to eat earlier in the day, usually no later than four. Your body's metabolism tends to slow down the later in the day it is so the calories that you eat are not burned off as fast as we would like them. And if you are hungry still after work then eat something light and small.