Minute

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This article is about the unit of time, angle and right ascension. For the written record of a meeting, see Minutes. For other uses of the word, see Minute (disambiguation).

The minute is a unit of time or of angle. As a unit of time, the minute is equal to 160 (the first sexagesimal fraction[1]) of an hour or 60 seconds. In the UTC time standard, a minute on rare occasions has 59 or 61 seconds, a consequence of leap seconds. As a unit of angle, the minute of arc is equal to 160 of a degree or 60 seconds (of arc). Although not an SI unit for either time or angle, the minute is accepted for use with SI units for both.[2] The SI symbols for minute or minutes are min for time measurement, and the prime symbol after a number, e.g. 5′, for angle measurement. The prime is also sometimes used informally to denote minutes of time.

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Notes and references[edit]

  1. ^ "What is the origin of hours, minutes and seconds?". Wisteme. Archived from the original on 24 March 2012. Retrieved 2011-05-25. What we now call a minute derives from the first fractional sexagesimal place 
  2. ^ "Non-SI units accepted for use with the SI, and units based on fundamental constants". Bureau International de Poids et Mesures. Retrieved 2011-05-25. 

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