equinox

either of two times of the year when the sun crosses the plane of the earths equator and day and night are of equal length

सम्पात के दिन २१ मार्च तथा २३ सितम्बर होते हैं जब दिन और रात बराबर होते hain. Equinox occurs twice in a year on 21st March and 23rd September when lengths of day and night are equal.

The spring and autumn equinoxes bring wonderful weather in Hyderabad.