The next time we’ll see an equinox will be on the first day of spring 2022.
This results in an almost equal balance of daylight and dark on that particular date.
The two other seasons of the year have a designation of their own.

For instance, the fall equinox always occurs between September 21 and 24, viaCalendarpedia.
However, the same outlet notes that many other cultures that pre-date Christianity also have similar celebrations and rituals.
There are various rituals and traditions associated with each solstice and equinox.

The spring equinox is also the Iranian New Year festival, known as Nowruz.