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The two days of the year when there is exactly 12 hours of night and 12 hours of day are the equinoxes. They occur around the 20th of March and the 23rd of September each year.

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Domenica Ruecker

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โˆ™ 2022-01-17 16:49:55
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A polynomial of degree zero is a constant term

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โˆ™ 2022-01-17 20:25:51

The word you want us 'Equinox'.

In any given year there are two equinoxes. They are

The Vernal Equinox ( 21 March - Spring) and

The Autumn Equinox ( 31 September - 'Fall').

NB There are also two Solstices. They are

The Summer Solstice ( 21 JUne - Longest day and Shortest night in ther Northern Hemisphere )

The Winter Solstice ( 21 December - Shortest day and longest night in the northern hemisphere).

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Q: What is the word used to describe the times when the length of day equals the length of night?
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