Sun Financial Calendar 2025. ( ut/gmt) time | change to your local timezone. Go to detailed event pages where you can download more information or watch webcasts when available.
Autumn equinox 2025 (beginning of astronomical autumn) on the day of the autumn (september) equinox, the sun, moving along the ecliptic, crosses the celestial equator,. How about solar magnetic storms, which are due to reach a cyclical peak in 2025—and could cause widespread havoc and trillions of dollars of damage on earth.