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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.
With a mnemonic word play referring to seasons, clocks "spring forward, fall back"—that is, in springtime the clocks are moved forward from 2:00 a.m. to 3:00 a.m. and in fall they are moved back from 2:00 a.m. to 1:00 a.m. Daylight saving time lasts for a total of 34 weeks (238 days) every year, about 65% of the entire year.
There are technically two days that you could consider as the start of the fall season. There's astronomical fall, which begins Sept. 22 with the autumnal equinox.
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.
Meteorological spring can therefore, start on different dates in different regions. In the United States and United Kingdom, spring months are March, April, and May. [2] [3] In Ireland, following the Irish calendar, spring is often defined as February, March, and April. [4] [5]
Astronomical fall starts on the autumnal equinox, between Sept. 21 and Sept. 23, and ends on the winter solstice, between Dec. 20 and Dec. 22.
Thus the solstices always occur between June 20 and 22 and between December 20 and 23 [30] [31] in a four-year-long cycle with the 21st and 22nd being the most common dates, as can be seen in the schedule at the start of the article.
There is both a meteorological fall, which began Sept. 1, and an astronomical fall, which will begin Sept. 22. When does fall start in 2022? Depends on whom you ask