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  2. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    All timekeepers before the 13th century relied upon methods that used something that moved continuously. No early method of keeping time changed at a steady rate. [6] Devices and methods for keeping time have improved continuously through a long series of new inventions and ideas. [7]

  3. Repeater (horology) - Wikipedia

    en.wikipedia.org/wiki/Repeater_(horology)

    The mechanism uses 2 chimes of different tones. The low tone usually signals the hours, and the high tone the quarter hours. As an example, if the time is 2:45, the quarter repeater sounds 2 low tones and after a short pause 3 high ones: "dong, dong, ding, ding, ding".

  4. Play clock - Wikipedia

    en.wikipedia.org/wiki/Play_clock

    A play clock, also called a delay-of-game timer, is a countdown clock intended to speed up the pace of the game in gridiron football.The offensive team must put the ball in play by either snapping the ball during a scrimmage down or kicking the ball during a free kick down before the time expires, or else they will be assessed a 5-yard delay of game (American football) or time count violation ...

  5. Clock management - Wikipedia

    en.wikipedia.org/wiki/Clock_management

    In college football & Texas high school football, the clock restarts upon the snap of the ball when the clock was stopped with less than 2:00 left in either half. The NFL rule is the same as in the college game for the first half of games, but the clock restarts upon the snap when there is under 5:00 left in the 4th quarter/overtime. In high ...

  6. Trent Tucker Rule - Wikipedia

    en.wikipedia.org/wiki/Trent_Tucker_Rule

    If under :00.3 expires in such a situation, the timer will be instructed to deduct AT LEAST :00.3 from the game clock and shot clock. If, in the judgment of the official, the play took longer than :00.3, he will instruct the timer to deduct more time. If under :00.3 remain on the game clock when this situation occurs, the period is over.

  7. Falcons run out of time to control their path to the playoffs ...

    www.aol.com/falcons-run-time-control-path...

    The Falcons have run out of time to control their own path to the playoffs after mismanaging the clock multiple times in a 30-24 overtime loss to the Washington Commanders.

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Traditional Chinese timekeeping - Wikipedia

    en.wikipedia.org/wiki/Traditional_Chinese...

    According to this text, niàn is the smallest unit of time at 18 milliseconds and a shùn is 360 milliseconds. [8] It also describes larger units of time, including a tánzhǐ which is 7.2 seconds long, a luóyù which is 2 minutes 24 seconds long, and a xūyú , which is 1 ⁄ 30 of a day at 48 minutes long. [c]