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Because the Fall Equinox is not a fixed day, but is rather based on an astronomical prediction, the date can change year to year. But it always occurs between September 21 and September 24.
The autumnal equinox is scheduled to arrive at 7:44 a.m. CT Sunday, Sept. 22, according to the Old Farmer's Almanac. The equinox arrives at the same moment worldwide. When is the first day of winter?
In the Northern Hemisphere after the autumnal equinox, the days begin to get shorter as the winter solstice gets closer. The seasons result from the Earth's tilt toward or away from the Sun.
The September equinox (or southward equinox) is the moment when the Sun appears to cross the celestial equator, heading southward. Because of differences between the calendar year and the tropical year, the September equinox may occur from September 21 to 24. At the equinox, the Sun as viewed from the equator rises due east and sets due west ...
The Persian calendar begins each year at the northward equinox, observationally determined at Tehran. [15] The Indian national calendar starts the year on the day next to the vernal equinox on 22 March (21 March in leap years) with a 30-day month (31 days in leap years), then has 5 months of 31 days followed by 6 months of 30 days. [15]
In the Northern Hemisphere, the March equinox is called the vernal or spring equinox while the September equinox is called the autumnal or fall equinox. In the Southern Hemisphere, the reverse is true. During the year, equinoxes alternate with solstices. Leap years and other factors cause the dates of both events to vary slightly. [12]
The autumnal equinox is scheduled to arrive on Sunday, Sept. 22 at 8:44 a.m. ET, according to the Old Farmer's Almanac. The equinox arrives at the same moment worldwide. When is the first day of ...
Fall equinox 2024 arrives on Sunday, September 22. Find out why the first day of autumn still features a little more daylight than darkness.