New Delhi, March 20 -- The spring equinox is here, signalling the official commencement of astronomical spring. In the northern hemisphere, this celestial transition consistently occurs between 19 and 21 March. This year, the event falls on 20 March at 14:45.

The specific timing is dictated by Earth's axial tilt during its solar orbit, occurring twice annually - once in March and again in September. It happens simultaneously for everyone worldwide; however, for those south of the equator where seasons are flipped, this marks the start of autumn.

During the equinox, the Earth's axis (indicated by a black line) is positioned neither toward nor away from the Sun. The planet maintains a 23.5-degree tilt, and its orientation relative to the ...