Equinox
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An equinox occurs twice a year, around 20 March and 22 September. The word itself has several related definitions. The oldest meaning is the day when daytime and night are of approximately equal duration.
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See also
- Aphelion – occurs around 5 July (see formula)
- Lady Day
- Nowruz
- Solstice
- Songkran
- Sun outage – a phenomenon that occurs around the time of an equinox
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