Mary Jo: it is using a fisher clock which means that you have 1 day total to play the whole game with a 3 hour bonus, to make it simple for example if you wait 8 hours to make your move you would have 16 hours left plus 3 hours for your bonus for a total of 19 hours to make your next move, if you wait 5 hours when it is your next turn to move you ould have 14 hours left plus 3 for a total of 17 hours to make your next turn,. these games can catch up with you when you have to work or sleep so its a good idea to play these games first when you are on-line to add up the bonus time