Equinox daylight hours are slightly more than 12 hours, because of light refraction and the way sunrise and sunset are defined.

Thursday, 22 September 2016. The September equinox (or Southward equinox) is the moment when the #Sun appears to cross the celestial equator, heading southward. Due to differences between the calendar year and the tropical year, the September equinox can occur at any time from the 21st to the 24th day of #September.

Are you wondering when spring starts or fall ends? Season dates depend on the definition you use. We explain the two most common ones.

During an equinox, the celestial equator is crossed by the sun. It is known as an astronomical event that occurs at the same moment all over the world but the time is converted into the local time of each country. #SocialMediaGreetings #SocialMediaDays #Whichdaytoday #TodayQuotes #SocialMediaMessages #SeptemberEquinoxGreetings

The September equinox is the moment when the Sun crosses the equator from north to south. The day of the equinox has a special significance around the world.

The Seasons, the Equinox, and the Solstices

The September Equinox is the astronomical phenomenon when the sun crosses the celestial equator from north to south. Read on to find out more.

The March equinox is when the Sun crosses the equator from south to north. It happens around March 20-21. When is the equinox 2025?