About Spring Equinox (March Equinox)
The March equinox — the astronomical first day of spring in the Northern Hemisphere — falls around March 20, the moment the Sun crosses the celestial equator heading north. Day and night stand nearly equal everywhere on Earth, and from here northern days outgrow the nights. The countdown above targets the next equinox day.
The moment carries millennia of meaning: it fixes the date of Easter (the first full moon after this equinox sets the calculation), marks Nowruz — the Persian New Year celebrated by 300 million people — and aligns ancient monuments from Chichén Itzá's serpent-shadow staircase to Stonehenge. For the Southern Hemisphere, the same instant begins autumn.
Upcoming dates
| 2027 | Saturday, March 20, 2027next |
| 2028 | Monday, March 20, 2028 |
| 2029 | Tuesday, March 20, 2029 |
| 2030 | Wednesday, March 20, 2030 |
FAQ
When is the spring equinox 2027?
March 20, 2027 — see the upcoming-dates table for each year. The exact moment shifts by hours annually.
Is day exactly equal to night?
Almost — refraction and the Sun's size make daylight slightly longer; the true 12/12 split ("equilux") falls a few days earlier.
Why does the equinox set Easter's date?
Easter is the first Sunday after the first full moon on or after the March equinox — the rule used since 325 AD.