Unused time during one byo-yomi period does not carry forward to future moves. This is in contrast to the Fischer clock often used in chess, with designations such as "5 minutes + 12 seconds per move". Under this time control each player has twelve seconds added to their clock after every move, starting from the first move, regardless of how much time they spend on each move. Thus if a player thinks for eight seconds before making their first move, they will have five minutes and four seconds on their clock after making it.