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  2. Doomsday Clock - Wikipedia

    en.wikipedia.org/wiki/Doomsday_Clock

    It has since been set backward 8 times and forward 17 times. 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. [6]

  3. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    Dials that showed minutes and seconds became common after the increase in accuracy made possible by the pendulum clock. Brahe used clocks with minutes and seconds to observe stellar positions. [112] The pendulum clock outperformed all other kinds of mechanical timekeepers to such an extent that these were usually refitted with a pendulum—a ...

  4. Sequential time - Wikipedia

    en.wikipedia.org/wiki/Sequential_time

    Palindromic times can also be observed, e.g. 10:02:10 on 11/01/2001 (two minutes and ten seconds after 10 am on 11 January 2001 in parts of the world using month/day format) was the first fully palindromic time sequence of the twenty-first century. The last palindromic time sequence was at 02:02:10 at 11/01/2020 (two minutes and twenty-one ...

  5. South Africa Standard Time - Wikipedia

    en.wikipedia.org/wiki/South_Africa_Standard_Time

    The South African National Time Standard, or 'SA Time' Master Clock, is maintained at the Time and Frequency Laboratory of the National Metrology Institute of South Africa (NMISA) at Pretoria and is distributed publicly by an NTP Internet Time service. [1] [2]

  6. 24-hour clock - Wikipedia

    en.wikipedia.org/wiki/24-hour_clock

    24-hour digital clock in Miaoli HSR station. A public 24-hour clock in Curitiba, Brazil, with the hour hand on the outside and the minute hand on the inside.. A time of day is written in the 24-hour notation in the form hh:mm (for example 01:23) or hh:mm:ss (for example, 01:23:45), where hh (00 to 23) is the number of full hours that have passed since midnight, mm (00 to 59) is the number of ...

  7. Ukraine war moves 'Doomsday Clock' to 90 seconds to midnight

    www.aol.com/news/ukraine-war-moves-doomsday...

    With Russia’s invasion of Ukraine and the specter of nuclear weapon use, Earth crept its closest to Armageddon, a science-oriented advocacy group said, moving its famous “Doomsday Clock” up ...

  8. Binary clock - Wikipedia

    en.wikipedia.org/wiki/Binary_clock

    A binary clock is a clock that displays the time of day in a binary format. Originally, such clocks showed each decimal digit of sexagesimal time as a binary value, but presently binary clocks also exist which display hours, minutes, and seconds as binary numbers. Most binary clocks are digital, although analog varieties exist. True binary ...

  9. A Time Scientist Watches the World's 2 Official Clocks. He ...

    www.aol.com/lifestyle/time-scientist-watches...

    An influential time scientist has suggested that Earth do away with leap seconds and go for a leap minute instead. A Time Scientist Watches the World's 2 Official Clocks. He Says We Need a 'Leap ...