okjb: I'm not sure all that has changed, but I think time when a game is due is still done when opponent completes their move, and adjusts for weekend days a player has choosen.

But lets say a person has Sat & Sun as weekend - and a game is set to time out on Friday - if the auto-vacation kicks in on Friday, then when Sat & Sun comes along - it will still add hours, but without using weekend days.

I would guess the correct way for the system to handle that would be to when the weekend comes along, only add hours to those games that are to time out (not all games since the rest should have already been adjusted for the weekend) - then when the weekend is over and if vacations are still being used, then adjust all games and not just the times out games.