Vernal Equinox 2025 Date

Vernal Equinox 2025 Date. The table presented here gives the date and time (greenwich mean time) of. The spring or vernal equinox marks the astronomical first day of spring.

For the model e ar5 simulations, all years have exactly 365 days and vernal equinox always occurs on march 21, hour 0. The spring or vernal equinox marks the astronomical first day of spring.