Earth saw almost equal day and night on March 20
March 20 marked the beginning of the spring season in the Northern Hemisphere, referred as 'spring equinox', with 'equinox' being Latin for 'equal night'. An equinox occurs twice in a year when the Sun is directly over Earth's equator, resulting in both day and night time to be roughly 12 hours each. Notably, the autumn equinox falls on September 23.