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Time clock. A time clock, sometimes known as a clock card machine, punch clock, or time recorder, is a device that records start and end times for hourly employees (or those on flexi-time) at a place of business. In mechanical time clocks, this was accomplished by inserting a heavy paper card, called a time card, into a slot on the time clock.
In 1979, Kronos delivered the world's first microprocessor-based time clock and, in 1985, delivered its first PC-based time and attendance product. In 1992, Kronos became a publicly-traded company on NASDAQ. Aron Ain, [6] succeeded his brother Mark Ain as chief executive officer in 2005. [7] In March 2007, Kronos went private again, bought out ...
Early versions erred by less than one minute per day, and later ones only by 10 seconds, very accurate for their time. 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]
1.8 ks: The time slot for the typical situation comedy on television with advertisements included 2.28 ks: The duration of the Anglo-Zanzibar War, the shortest war in recorded history. 3.6 ks: The length of one hour (h), the time for the minute hand of a clock to cycle once around the face, approximately 1/24 of one mean solar day
Clocks; a watch-maker seated at his workbench. Chronometry[a] or horology[b] (lit. 'the study of time') is the science studying the measurement of time and timekeeping. [3] Chronometry enables the establishment of standard measurements of time, which have applications in a broad range of social and scientific areas.
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 September 2024. Ruler of the Titans in Greek mythology Not to be confused with Chronos, the personification of time. For other uses, see Cronus (disambiguation). Cronus Leader of the Titans Rhea offers the stone to Cronus, red-figure ceramic vase c. 460-450 BC, Metropolitan Museum of Art, New York ...
The company manufactured the 8000 series time clock at their works in Hammersmith, London. The first electronic time system was manufactured by the company and was called Kronos and was based on the 8000 series clocks. Later the company developed totally electronic system called Time Lord which could be stand-alone or computer linked.
The clock's face is a rippling 24-carat gold-plated stainless steel disc, about 1.5 metres (4.9 ft) in diameter. It has no hands or numerals, but displays the time by opening individual slits in the clock face backlit with blue LEDs; these slits are arranged in three concentric rings displaying hours, minutes, and seconds. Video