Here's why:
* Equinox means "equal night": The word equinox itself comes from Latin and means "equal night." This refers to the fact that on an equinox, the day and night are roughly the same length.
* Sun over the equator: During an equinox, the Sun is directly over the equator. This means that both hemispheres are receiving equal amounts of sunlight.
* Slight variation: While the day and night are nearly equal on an equinox, there might be a slight difference in the length of daylight hours at different locations due to factors like atmospheric refraction and the Earth's tilt. However, this difference is usually negligible.
Important Note: The length of daylight hours varies throughout the year, with longer days in the summer solstice and shorter days in the winter solstice. The equinoxes mark the transition between these two periods.
