The equinox arrives on September 23. That’s when the equinox sun is exactly above Earth’s equator, moving from north to south. At the equinox, days and nights are approximately equal in length. For us in the Northern Hemisphere, the sun is rising later now, and nightfall comes sooner.Continue reading
The September equinox occurs at 13:31 UTC (7:30am Central time). The Sun will shine directly on the equator and there will be nearly equal amounts of day and night throughout the world.