How is Spring Equinox calculated?

This event is based on the astronomical moment when the Sun crosses the celestial equator heading northward each year.

When is Spring Equinox 2663?

Saturday, 21 March 2663

Spring Equinox marks the astronomical moment when day and night are nearly equal and the Sun crosses the celestial equator northward, signalling the start of spring in the Northern Hemisphere.

Also known as

Vernal Equinox
Northward Equinox

Add to your calendar

Download an iCalendar file for Spring Equinox and add it to your calendar app.

Add to calendar

Frequently asked questions

When is Spring Equinox 2663?: Spring Equinox 2663 is on Saturday, 21 March 2663.
What day of the week is Spring Equinox 2663?: It falls on Saturday.
How is Spring Equinox calculated?: This event is based on the astronomical moment when the Sun crosses the celestial equator heading northward each year.