The times I eat my main meal

Hi all, I'm new to the forum but not the site but I can't find anything on here that answers my question. 

Basically, does eating your main meal later in the evening restrict your chances of losing weight?  Does it make a difference?  I'm currently dieting and hitting the gym 5 days a week in a bid to lose around 5 stone (70lb), i've currently lost 10lb but it seems to have halted for the past week and a half but co-incidentally I've also been forced to have my main meal later than I'd have liked, around two hours before bed.  A friend of mine has said that could be the reason.  I'm generally eating around 1700 calories and burning between 3500 and 4500 a day depending on the days I work.

Also, is there any way of including energy drinks like Monster and my own personal favourite Relentless as part of a healthy diet?  I drink a lot of them, I'm fairly sure I depend on them to get me through the day.  I get up at 03:45 5 days and week and don't go to bed until around 10am and so I've found myself using them to get through the working day without falling asleep and now I can't quit them, or at least it is proving very very difficult.  Could this be a major hindrence?

Thanks in advance.

I eat dinner as my biggest meal, and I haven't had any trouble.

Sorry, I realise the "dinner" (we call it tea lol) is the biggest meal of the day but does it matter what time you have it?  Recently I've been having it at like 9pm and going to bed at 10pm, does this have a negative effect on weight loss?

No.  For people with digestion issues it might give them acid reflux, but that shouldn't matter too much.  If you eat dinner late, try eating breakfast later in the morning.  Maybe that will help.

Will do that, thanks very much.

Time doesn't matter. :) I sometimes won't eat dinner until 9 or 10 at night after workouts/training and some days when I have a long workout or race, I will wake up at 3ish, eat a meal, go back to sleep for a few hours and then get up to race/train. That's so I get most of the digestion out of the way before starting exertion.

I've lost 40 pounds and kept it off with normal fluctuations for about a year.