https://www.timeanddate.com/calendar/september-equinox.html

In the Northern Hemisphere, the September equinox marks the start of fall ( autumn). Many cultures and religions celebrate holidays and festivals around the  ...

https://www.timeanddate.com/calendar/autumnal-equinox.html

Equinoxes and solstices mark the start of astronomical seasons. The equinoxes start spring and fall, while solstices start astronomical summer and winter.

https://www.almanac.com/content/first-day-seasons

Find out the dates of the first days of spring, summer, fall, and winter. ... Earth less time to go from the autumnal equinox to the vernal equinox than it does to go ...

https://www.almanac.com/content/first-day-fall-autumnal-equinox

Nov 6, 2018 ... Why does this happen? ... And then don't forget about the end of Daylight Saving Time when you “fall” back, setting your clocks back one hour ... Also notice the arc of the sun across the sky each day as it starts shifting south.

http://www.glib.com/season_dates.html

Dates and Times of Seasons 1995 - 2020 ... First Third of Autumn, 10/23/95 6:54, 10/23/95 10:54 ... Second Third of Autumn, 11/22/95 4:35, 11/22/95 9:35 ...... † Starting in 2007, Daylight Saving Time is supposed to start on the second Sunday ...

http://www.calendarpedia.com/when-is/autumn.html

Autumn 2019 starts on Monday, September 23, 2019 (in 127 days) and ends on Sunday ... While autumn starts and ends at the same moment in time all over the  ...

http://www.calendarpedia.com/when-is/fall.html

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 ...

https://www.metoffice.gov.uk/weather/learn-about/weather/seasons/autumn/when-does-autumn-start

We often talk about it beginning to feel like autumn when the nights start to draw in ... It also marks the time of year when the northern hemisphere begins to tilt ...

https://www.newsweek.com/when-does-fall-start-autumn-equinox-season-beginning-1126605

Sep 18, 2018 ... When exactly does fall, the autumnal equinox start? The equinox happens at a different time depending on exact location. In New York City, the ...

https://www.travelandleisure.com/travel-news/autumn-equinox-first-day-of-fall

Sep 20, 2018 ... The last day of summer is also the same as the first day of fall: Saturday, September 22. The first minute of fall, however, varies by time zone.