pauloaguia: That's not how I would do it. What I would do is: if one times out on a game, and the player has set that date for a vacation day, or has autovacation set (and still has vacation days set), I'd add 24 hours to the clock on every game the player has running, regardless whether it's his/her turn. Then subtract 1 from his number of vacation days for the year. You only need to do this at most once every 24 hours. After a player moves, check whether his clock is above the max. time that the game setting allows (this may happen after a player was on vacation while it wasn't his move) - and set the clock to the max if over.

The key point is that 24 hours only get added to the clock when the number of vacation days in decreased.