Is the spring equinox always on the same day? The spring equinox always occurs in the Northern Hemisphere on March 19, 20 or 21. The Gregorian calendar adds a leap day every four years to account for this, and the spring equinox date varies for the same reason. In the late afternoon, the sun creates a shadow that looks like a snake sliding down the northern staircase. And in Stonehenge, England, pagans, druids and tourists watch the picturesque sunrise at the prehistoric monument.

Source: Daily Sun March 19, 2020 12:22 UTC