crosseyed:

Time: 3 days
Bonus: 3 hours
Limit: 7 days

So in the start of the game, you start out with 72 hours (3 days) to make your move.

Lets say you use 24 hours - so now you are down to 48 hours.

Opponent makes move

The games comes back to you with the 48 hours left PLUS the bonus of 3 hours - giving you 51 hours for your next move.

Lets say you took 50 hours to make your move. Now you are down to 1 hour

Opponent moves

The games comes back to you with the 1 hours left PLUS the bonus of 3 hours - giving you 4 hours for your next move.

If you do not make a move within 4 hours of when your opponent does, then you time out.

This is how the Fishers clock works.

(The Limit: That is the MAX amount of time you can get. So lets say you make all your moves UNDER 3 hours of when your opponent does, then you would actually start gaining time on the clock - up to a max of 7 days.)