The Witching Hour: 6PM EST

For all you Fantasy Fanatics out there - The official FIFA fantasy game allows substitutions in between game days within a round. If you haven't already made this essential to your strategy you better jump on it!

The substitution window opens at midnight South African time and only stays open a few hours, with subs locked during actual times that games are going on. [EDITOR'S NOTE: To clarify, the substitution window closes 15 minutes prior to the first kickoff of each day.]

midnight in the land of football is 6PM Eastern so that's when you want to remember to go sub out any players who just performed below expectations.