Equinox Calendar 2025. We greet the first day of the new season with the spring equinox, but what is it, exactly? Find out the date when march equinox is in 2025 and count down the days until march equinox with a countdown timer.
When is it, and what is it? The first day of autumn often called fall (september equinox or autumnal equinox) is when the sun shines directly on the celestial equator passing from north to south and the.