Why are days and nights not equal throughout the world ? Share with your friends Share 1 Pranav Sharma answered this The day and night r not equal because Earth is tilted slightly and formed the angle of inclination with the equator at 66.5 degree. 7 View Full Answer Shreyas Patnaik answered this Dear friend, There is a time called Equinox, when day and night are equal. But, in other times, day and night are not equal. Hope this helps you! 3 Santanu Sahoo answered this Dear Friend, Days & night are not equal except the equinox days as the seasons changes due to revolution & duration of day & night differ. -1 Maruf Ahmed answered this The days and nights are not equal because at one time only half of the earth faces the sun while the other half is facing the other side. -3