equinox
equinox
This is called the "equinox", or "equal nights" - when the night and day are approximately the same duration.
The sun is directly over the southern hemisphere from the September equinox until the March equinox.
Duration.
The Autumnal Equinox occurs in September when the length of day and night is nearly equal. This is when the sun shines directly on the equator. People often have equinox parties to celebrate this date.
On the equator, the sun always seems very high at mid-day. But the sun is precisely over the equator only two moments in the year, the moment of the Vernal Equinox (Spring) and the moment of the Autumnal Equinox (Fall).
The Sun is directly overhead the same latitude at noon every day. It is over the equator at 0 degrees. Just because it is Halloween doesn't change anything.
If you are at the equator, the SUN will be directly overhead during the equinoxes - around 21 March, and 23 September.
The equator, more or less. The dates of the equinoxes do vary a day either way, depending on the cycle of leap years.
the sun is directly above the equator. The vernal equinox occurs on this day.
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March 20 or March 21, depending on where you live The time when the sun crossed directly over the equator was 03:52 UTC on March 21.