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Horology is commonly used specifically with reference to the mechanical instruments created to keep time: clocks, watches, clockwork, sundials, hourglasses, clepsydras, timers, time recorders, marine chronometers, and atomic clocks are all examples of instruments used to measure time.
The equation of time was engraved on sundials so that clocks could be set using the Sun. In 1720, Joseph Williamson claimed to have invented a clock that showed solar time, fitted with a cam and differential gearing, so that the clock indicated true solar time. [137] [138] [139]
c. 3500 BC - Egyptian obelisks are among the earliest shadow clocks. [1] c. 1500 BC - The oldest of all known sundials, dating back to the 19th Dynasty. [2] c. 500 BC - A shadow clock is developed similar in shape to a bent T-square. [3] 3rd century BC - Berossos invents the hemispherical sundial. [4] 270 BCE - Ctesibius builds a water clock.
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Early time clock, made by National Time Recorder Co. Ltd. of Blackfriars, London at Wookey Hole Caves museum A Bundy clock used by Birmingham Corporation Transport. An early and influential time clock, sometimes described as the first, was invented on November 20, 1888, by Willard Le Grand Bundy, [2] a jeweler in Auburn, New York.
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The Akan Calendar is a Calendar created by the Akan people (a Kwa group of West Africa) who appear to have used a traditional system of timekeeping based on a six-day week (known as nnanson "seven-days" via inclusive counting). The Gregorian seven-day week is known as nnawɔtwe (eight-days). The combination of these two system resulted in ...
The House voted 138-5 to approve HB 1442 and stay on daylight saving time moving forward. The bill was sent to the Senate but remained in a committee as the 88th legislative session adjourned on ...