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  2. Feb 20, 2024 · The 2021 fall equinox will take place on Wednesday, September 22, 2021 at 3:21 p.m. Eastern. During that time, the Sun will be exactly above the Earth’s equator and will appear overhead...

    • Passant Rabie
  3. Mar 19, 2024 · There are two equinoxes and two solstices each year. Check the dates for the 2021-2030 decade and the preceding ones, 2010-2020, 2000-2009, and 1992-1999. Our ancient ancestors observed that the height of the noon sun varies throughout the year of 365 days.

  4. Mar 19, 2024 · Dates and times for the current year and the 2021-2030 decade. Times in time zone: America/Los_Angeles. The dates for equinoxes and solstices in the Northern and Southern Hemispheres are the same, but in opposite seasons. Autumnal/fall Equinox north of the Equator is mirrored south of the Equator by the Spring Equinox.

  5. Sep 21, 2021 · When is the autumn equinox 2021? The northern hemisphere welcomes autumn during the September equinox. This year, the autumn equinox takes place on September 22 at 8.21pm BST.

    • Laura Sharman
  6. Sep 22, 2021 · In 2021, the autumnal equinox falls on Tuesday 22 September, technically at 8.20pm in the UK – it can occur at any time between the 21 and 24 September. Equinoxes happen twice a year,...

  7. In 2024 the autumnal equinox will occur on 22 September at 12.44pm GMT (1.44pm BST). Find out more about equinoxes and solstices. When is autumn? There are three main different ways of defining autumn: astronomical, meteorological and phenological. Astronomically, the four seasons centre around the equinoxes and solstices.

  8. Sep 21, 2021 · In 2021 the autumnal equinox falls on September 22 at 8.21pm. As the Earth orbits the Sun, the tilt on its axis means that the sun's rays fall more on the northern or the southern...

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