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  2. Temporal mean - Wikipedia

    en.wikipedia.org/wiki/Temporal_mean

    The temporal mean is the arithmetic mean of a series of values over a time period. Assuming equidistant measuring or sampling times, it can be computed as the sum of the values over a period divided by the number of values. A simple moving average can be considered to be a sequence of temporal means over periods of equal duration.

  3. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    10 nanoseconds, also a casual term for a short period of time. microsecond: 10 −6 s: One millionth of a second. Symbol is μs millisecond: 10 −3 s: One thousandth of a second. Shortest time unit used on stopwatches. jiffy (electronics) ~ 10 −3 s: Used to measure the time between alternating power cycles. Also a casual term for a short ...

  4. Wikipedia:Manual of Style/Dates and numbers - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/...

    Rarely, the time zone in which an event took place has since changed; for example, China until 1949 was divided into five time zones, whereas all of modern China is one time zone; UTC+8. Similarly, the term "UTC" is not appropriate for dates before this system was adopted in 1960; [2] Universal Time (UT) is the appropriate term for the mean ...

  5. Time - Wikipedia

    en.wikipedia.org/wiki/Time

    Time is the continuous progression of our changing existence that occurs in an apparently irreversible succession from the past, through the present, and into the future. [1] [2] [3] It is a component quantity of various measurements used to sequence events, to compare the duration of events (or the intervals between them), and to quantify rates of change of quantities in material reality or ...

  6. Meantime - Wikipedia

    en.wikipedia.org/wiki/Meantime

    Greenwich Mean Time, the mean solar time at the Royal Observatory, Greenwich in England: often used to refer to Coordinated Universal Time; Local mean time, a form of solar time that corrects the variations of local apparent time; Washington Mean Time, the time at the meridian through the center of the old dome atop the main building at the old ...

  7. Time standard - Wikipedia

    en.wikipedia.org/wiki/Time_standard

    Mean solar time was a time standard used especially at sea for navigational purposes, calculated by observing apparent solar time and then adding to it a correction, the equation of time, which compensated for two known irregularities in the length of the day, caused by the ellipticity of the Earth's orbit and the obliquity of the Earth's ...

  8. Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Mean_time_between_failures

    MTBF can be calculated as the arithmetic mean (average) time between failures of a system. The term is used for repairable systems while mean time to failure (MTTF) denotes the expected time to failure for a non-repairable system. [1] The definition of MTBF depends on the definition of what is considered a failure.

  9. Mean - Wikipedia

    en.wikipedia.org/wiki/Mean

    The harmonic mean is an average which is useful for sets of numbers which are defined in relation to some unit, as in the case of speed (i.e., distance per unit of time): ¯ = (=) For example, the harmonic mean of the five values: 4, 36, 45, 50, 75 is