This is something I knew already, but it's probably worth sharing: http://news.health.com/2012/12/03/want-to-lose-weight-here-is-the-1-habit-you-need-to-break/ 
If you want to lose weight, no snacking after 6PM. If you're a night owl, no snacking after 8PM. Eating at night changes your metabolism for the worst because it decreases fat oxidation.
This article says 6:00PM should be the cut off. That seems so early to me. I used to think it was 8PM for everyone, but not according to this article.
Do you snack in the evening?