Astronomically, an equinox occurs when the sun is directly above the equator. The term combines the Latin words aequi, meaning “equal,” and nox, meaning “night,” and corresponds to the two days of the ...

Despite the unpredictable weather, spring officially arrives today, marking the vernal equinox – a precise celestial event with global significance. This astronomical moment signals the start of ...

WASHINGTON — It's far from clear if the weather is planning to cooperate, but spring arrives — technically, at least — Friday. The vernal equinox arrives on Friday, marking the start of the spring ...

Spring officially begins at 10:46 a.m. ET on Friday, March 20, 2026, with the arrival of the vernal equinox (spring equinox).