Are All Solstices Equinoxes?

There also would be no need to mark equinoxes or solstices. The two solstices happen in June (20 or 21) and December (21 or 22). ... The equinoxes happen in March (about March 21) and September (about September 23). These are the days when the Sun is exactly above the Equator, which makes day and night of equal length.

How many equinoxes and solstices are there?

What Is a Solstice and What Is an Equinox (and Why Should I Care)? Astronomically, our planet's seasons change on four particular days each year, two solstices, one in June and one in December, and two equinoxes (one in March and one in September).

How are solstices & equinoxes different?

So, at the end of the day, while solstices and equinoxes are related, they happen at different times of the year. Just remember that solstices are the longest and shortest days of the year, while equinoxes occur when the day and night are equally as long.