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  2. Winter solstice - Wikipedia

    en.wikipedia.org/wiki/Winter_solstice

    December [6] year day time day time day time day time 2020 20: 03:50: 20: 21:43: 22: 13:31: 21: 10:03 ... and Cahokia Woodhenge are aligned with the sunrise or sunset ...

  3. December solstice - Wikipedia

    en.wikipedia.org/wiki/December_solstice

    The December-solstice solar year is the solar year based on the December solstice. It is thus the length of time between adjacent December solstices. The length of the December-solstice year has been relatively stable between 6000 BC and AD 2000, in the range of 49 minutes 30 seconds to 50 minutes in excess of 365 days 5 hours.

  4. Lighting-up time - Wikipedia

    en.wikipedia.org/wiki/Lighting-up_time

    Lighting-up time, sunrise/sunset and twilights at the National Maritime Museum, Greenwich, United Kingdom; Lighting-up time at the Royal Observatory Edinburgh; D. O'Leary, When to light up: a pocket treatise on the Lights on vehicles act, 1907 containing a full explanation of the act, with a table showing the lighting-up time Published 1908

  5. Sunset - Wikipedia

    en.wikipedia.org/wiki/Sunset

    Calculate the sunset time, which is the solar noon time plus the sunset hour angle in degree divided by 15; Use the sunset time as input to the solar geometry routine to get the solar azimuth angle at sunset. An interesting feature in the figure on the right is apparent hemispheric symmetry in regions where daily sunrise and sunset actually occur.

  6. Twilight - Wikipedia

    en.wikipedia.org/wiki/Twilight

    An Excel workbook with VBA functions for twilight (dawn and dusk), sunrise, solar noon, sunset, and solar position (azimuth and elevation) by Greg Pelletier, translated from NOAA's online calculator for sunrise/sunset; Time and Date to find the current state of the sun in a specified place. "Twilight" . Encyclopædia Britannica. Vol. 27 (11th ...

  7. Equinox - Wikipedia

    en.wikipedia.org/wiki/Equinox

    The times of sunset and sunrise vary with the observer's location (longitude and latitude), so the dates when day and night are equal also depend upon the observer's location. A third correction for the visual observation of a sunrise (or sunset) is the angle between the apparent horizon as seen by an observer and the geometric (or sensible ...

  8. Daylight saving time - Wikipedia

    en.wikipedia.org/wiki/Daylight_saving_time

    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.

  9. Sunrise equation - Wikipedia

    en.wikipedia.org/wiki/Sunrise_equation

    The sunrise equation or sunset equation can be used to derive the time of sunrise ... Models in Predicting Sunrise and Sunset Times ... on 11 December 2024 ...