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2. The best toothbrushes for healthy gums and teeth, tested and ...

   www.aol.com/lifestyle/best-electric-toothbrush...

   The built-in timers help ensure you brush for the dentist-recommended two minutes, which is crucial for maintaining good oral hygiene. Despite these benefits, some people prefer manual ...

3. Electric toothbrush - Wikipedia

   en.wikipedia.org/wiki/Electric_toothbrush

   Many modern electric toothbrushes have a timer that buzzes, or briefly interrupts power, typically after two minutes, and sometimes every 30 seconds. This is associated with a customary recommendation to brush for two minutes, 30 seconds for each of the four quadrants of the mouth.

4. Two-Minute Warning - Wikipedia

   en.wikipedia.org/wiki/Two-Minute_Warning

   Two-Minute Warning is a 1976 action thriller film directed by Larry Peerce and starring Charlton Heston, John Cassavetes, Martin Balsam, Beau Bridges, Jack Klugman, Gena Rowlands, and David Janssen. It was based on the novel of the same name written by George LaFountaine . The film was nominated for an Academy Award for Best Film Editing. [2] [3]

5. Doomsday Clock - Wikipedia

   en.wikipedia.org/wiki/Doomsday_Clock

   The farthest time from midnight was 17 minutes in 1991, and the nearest is 90 seconds, set in January 2023. The Clock was moved to 150 seconds (2 minutes, 30 seconds) in 2017, then forward to 2 minutes to midnight in January 2018, and left unchanged in 2019. [ 5 ]

6. Chess clock - Wikipedia

   en.wikipedia.org/wiki/Chess_clock

   For example, if the time control is 90+30 (ninety minutes of main time per player with a thirty-second increment each move), each player gets an additional thirty seconds added to their main time for each move, unless the player's main time ran out first. Under FIDE and US Chess rules, the increment is applied to the first move as well. For ...

7. Timer - Wikipedia

   en.wikipedia.org/wiki/Timer

   A typical kitchen timer. A timer or countdown timer is a type of clock that starts from a specified time duration and stops upon reaching 00:00. An example of a simple timer is an hourglass. Commonly, a timer triggers an alarm when it ends. A timer can be implemented through hardware or software.