What are the Days when the direct rays of the sun are directly at o degrees latitude, the equator

The days when the direct rays of the sun are directly over the equator (0 degrees latitude) are known as the equinoxes. There are two equinoxes in a year:

1.Vernal Equinox (Spring Equinox):

Occurs around March 20th or 21st in the Northern Hemisphere.

Marks the beginning of spring in the Northern Hemisphere.

On this day, the Sun's rays are directly over the equator, and day and night are approximately equal in duration worldwide.

2.Autumnal Equinox (Fall Equinox):

Occurs around September 22nd or 23rd in the Northern Hemisphere.

Marks the beginning of fall in the Northern Hemisphere.

Similar to the vernal equinox, during the autumnal equinox, the Sun's rays are directly over the equator, and day and night are approximately equal in duration worldwide.

The equinoxes are points in Earth's orbit around the Sun when the tilt of the Earth's axis is such that the Sun is directly above the equator, leading to equal day and night lengths across the globe. The equinoxes are key events in the astronomical calendar and have cultural and historical significance in various societies.