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  2. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    Earth-based: the day is based on the time it takes for the Earth to rotate on its own axis, as observed on a sundial [citation needed]. Units originally derived from this base include the week (seven days), and the fortnight (14 days). Subdivisions of the day include the hour (1/24 of a day), which is further subdivided into minutes and seconds ...

  3. Names of the days of the week - Wikipedia

    en.wikipedia.org/wiki/Names_of_the_days_of_the_week

    The Babylonians invented the actual [clarification needed] seven-day week in 600 BCE, with Emperor Constantine making the Day of the Sun (dies Solis, "Sunday") a legal holiday centuries later. [2] In the international standard ISO 8601, Monday is treated as the first day of the week, but in many countries it is counted as the second day of the ...

  4. Planetary hours - Wikipedia

    en.wikipedia.org/wiki/Planetary_hours

    The planetary hours are an ancient system in which one of the seven classical planets is given rulership over each day and various parts of the day. Developed in Hellenistic astrology, it has possible roots in older Babylonian astrology, and it is the origin of the names of the days of the week as used in English and numerous other languages.

  5. History of calendars - Wikipedia

    en.wikipedia.org/wiki/History_of_calendars

    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 ...

  6. Week - Wikipedia

    en.wikipedia.org/wiki/Week

    A week is a unit of time equal to seven days. It is the standard time period used for short cycles of days in most parts of the world. ... 1 week = 7 days = 168 hours ...

  7. Daylight saving time, fall back & spring forward: What we ...

    www.aol.com/daylight-saving-time-fall-back...

    Spring forward, fall back. Gain an hour, lose an hour. Daylight saving time. Daylight savings. No matter how you refer to it, daylight saving time is coming to an end − for 2024. The longtime ...

  8. Why do we work 9 to 5? The history of the eight-hour workday

    www.aol.com/why-9-5-history-eight-105902493.html

    Hunnicutt’s book, “Kellogg’s Six-Hour Day,” tells the story of how cereal baron W.K. Kellogg decided in 1930 to institute six-hour shifts in place of eight-hour shifts, with some reduction ...

  9. Metric time - Wikipedia

    en.wikipedia.org/wiki/Metric_time

    Metric time is the measure of time intervals using the metric system. The modern SI system defines the second as the base unit of time, and forms multiples and submultiples with metric prefixes such as kiloseconds and milliseconds. Other units of time – minute, hour, and day – are accepted for use with SI, but are not part of it