3/15/2023 0 Comments First day of fall 2020![]() ![]() To find out the exact date and time of fall 2023 in your area use this seasons calculator. For locations that are ahead of UTC (further east) it may fall on the day after, and for locations that are behind UTC (further west) it may fall on the day before. While fall starts and ends at the same moment in time all over the Northern Hemisphere, the date and local time differ from place to place depending on the year and a location's time zone. The start and end dates for fall given on this page are the dates of astronomical fall in the Northern Hemisphere and are based on Coordinated Universal Time (UTC), which for practical purposes is equivalent to Greenwich Mean Time (GMT - the time zone of the United Kingdom). ![]() In the Southern Hemisphere fall lasts from the March equinox (March 19 to 21) to the June solstice (June 20 to 22). Fall ends and winter starts at the moment of the December solstice, which occurs every year between December 20 and December 23. In the Northern Hemisphere summer ends and fall starts at the moment of the September equinox, which occurs every year between September 21 and 24. In the astronomical calendar the start and end dates of fall are based on the changing position of Earth in relation to the sun and the resulting solar events of equinoxes and solstices. Astronomical and meteorological fall start and end on different dates. The two most commonly used ones are based on the astronomical calendar and the meteorological calendar. ![]() There are various ways to define the start and end dates of fall. The first day of fall marks the beginning of the fall season (usually called autumn outside of North America), one of the four seasons that make up the year.Īstronomical fall vs. ![]()
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