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  2. Decimal time - Wikipedia

    en.wikipedia.org/wiki/Decimal_time

    There are exactly 86,400 standard seconds (see SI for the current definition of the standard second) in a standard day, but in the French decimal time system there were 100,000 decimal seconds in the day; thus, the decimal second was 13.6% shorter than its standard counterpart.

  3. Unit of time - Wikipedia

    en.wikipedia.org/wiki/Unit_of_time

    The SI day is exactly 86 400 seconds. week: 7 d: Historically sometimes also called "sennight". decaday 10 d (1 Dd) 10 days. A period of time analogous to the concept of "week", used by different societies around the world: the ancient Egyptian calendar, the ancient Chinese calendar, and also the French Republican calendar (in which it was ...

  4. Sexagesimal - Wikipedia

    en.wikipedia.org/wiki/Sexagesimal

    This notation leads to the modern signs for degrees, minutes, and seconds. The same minute and second nomenclature is also used for units of time, and the modern notation for time with hours, minutes, and seconds written in decimal and separated from each other by colons may be interpreted as a form of sexagesimal notation.

  5. 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

  6. French Republican calendar - Wikipedia

    en.wikipedia.org/wiki/French_Republican_calendar

    Each day in the Republican Calendar was divided into ten hours, each hour into 100 decimal minutes, and each decimal minute into 100 decimal seconds. Thus an hour was 144 conventional minutes (2.4 times as long as a conventional hour), a minute was 86.4 conventional seconds (44% longer than a conventional minute), and a second was 0.864 ...

  7. Swatch Internet Time - Wikipedia

    en.wikipedia.org/wiki/Swatch_Internet_Time

    The time of day always references the amount of time that has passed since midnight (standard time) in Biel, Switzerland, where Swatch's headquarters is located. For example, @248 BEATS indicates a time 248 .beats after midnight, or 248 ⁄ 1000 of a day (just over 5 hours and 57 minutes; or 5:57 AM UTC+1).

  8. Category:Decimal time - Wikipedia

    en.wikipedia.org/wiki/Category:Decimal_time

    Decimal time refers primarily to the idea of dividing the day into units of 10 –n days, where n is an integer. Pages in category "Decimal time" The following 6 pages are in this category, out of 6 total.

  9. Clock angle problem - Wikipedia

    en.wikipedia.org/wiki/Clock_angle_problem

    The angle is typically measured in degrees from the mark of number 12 clockwise. The time is usually based on a 12-hour clock. A method to solve such problems is to consider the rate of change of the angle in degrees per minute. The hour hand of a normal 12-hour analogue clock turns 360° in 12 hours (720 minutes) or 0.5° per minute.