Spring Equinox – Vernal Equinox
The Vernal (Spring) Equinox in the Northern Hemisphere is the Autumnal (Fall) Equinox in the Southern Hemisphere and vice versa.
On the equinoxes the Sun shines directly on the equator and the length of day and night is nearly equal – but not quite.
The March equinox marks the moment the Sun crosses the celestial equator – the imaginary line in the sky above the Earth’s equator – from south to north and vice versa in September.
Northern Hemisphere Spring Equinox
(USA, Central America, Canada, Europe, Asia, northern Africa)
March Equinox in Washington DC, District of Columbia, U.S.A. is on
Sunday, March 20, 2016 at 12:31 AM EDT (Change city)
March Equinox in Universal Coordinated Time is on
Sunday, March 20, 2016 at 04:31 UTC
Southern Hemisphere Spring Equinox
(Australia, New Zealand, South America, southern Africa)
September Equinox in Washington DC, District of Columbia, U.S.A. is on
Wednesday, September 23, 2015 at 4:22 AM EDT (Change city)
September Equinox in Universal Coordinated Time is on
Wednesday, September 23, 2015 at 08:22 UTC
First Day of Spring?
In the Northern Hemisphere, the Vernal (Spring) Equinox marks the first day of astronomical spring. There's also another, more common definition of when the seasons start, namely meteorological definitions, which are based on average temperatures rather that astronomical events.
In this Article
Equinox & Solstice
- Nearly Equal Night & Day
- March Equinox
- 10 Facts: March Equinox
- Vernal (Spring) Equinox
- Customs Around March Equinox
- September Equinox
- Autumnal (Fall) Equinox
- Customs: September Equinox
- June Solstice
- Customs Around June Solstice
- Summer Solstice
- December Solstice
- Winter Solstice