Vernal Equinox 2024 Time. Daylight saving time began on march 10, when people set their clocks one hour ahead of standard time in a practice rooted in making more use of sunlight in the evenings. The vernal equinox happens on march 19, 2024, at 23h06 edt (03h06 gmt, march 20) , marking the astronomical beginning of the spring season in the northern hemisphere.

The vernal equinox — is an astronomical phenomenon when the sun, in its visible motion along the ecliptic, crosses the celestial equator. In other words, on the day of the vernal.