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In Canadian football, the three-minute warning is given when three minutes of game time remain on the game clock in the first and second halves of a game. (If the ball is in play when the clock reaches 3:00, the three-minute warning is given immediately after the ball is declared dead.) The three-minute warning stops the game clock in all cases.
The 16th-century church clock at Arnemuiden indicates the time of local high tide as a pointer on a 12-hour clockface. Maassluis. Jacob Venker's tide clock on the exterior of the Nationaal Sleepvaart Museum was installed in 1996. Despite the clock's traditional dial, it is computer-controlled, and accounts for 94 waves in its tidal timekeeping.
Adopted standard time of UTC+2 in 1903. Observed annual changes to summer time in 1942–1943 (UTC+3 summer, UTC+2 standard). Observed annual changes to winter time in 1994–2017 (UTC+2 standard, UTC+1 winter) in all regions except Zambezi, which remained in UTC+2 all year. [10] Netherlands: Observed DST in 1916–1945 and since 1977. New ...
Daylight saving time (DST), also referred to as daylight saving(s), daylight savings time, daylight time (United States and Canada), or summer time (United Kingdom, European Union, and others), is the practice of advancing clocks to make better use of the longer daylight available during summer so that darkness falls at a later clock time.
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]
Early equation clocks have a pointer that moves to show the equation of time on a dial or scale. The clock itself runs at constant speed. The user calculates solar time by adding the equation of time to the clock reading. Later equation clocks, made in the 18th century, perform the compensation automatically, so the clock directly shows solar time.
Royal Observatory, Greenwich, London.Installed in 1833, a time ball sits atop the Octagon Room. A time ball or timeball is a time-signalling device. It consists of a large, painted wooden or metal ball that is dropped at a predetermined time, principally to enable navigators aboard ships offshore to verify the setting of their marine chronometers.
In horology, a complication is any feature of a timepiece beyond the display of hours, minutes and seconds. A timepiece indicating only hours, minutes and seconds is known as a simple movement. Common complications include date or day-of-the-week indicators, alarms, chronographs (stopwatches), and automatic winding mechanisms.