In Video: Day and night are in balance at the time of the equinoxPA19 March 2018 at 11:54 amThe spring, or vernal equinox, marks the first day of spring, which this year is March 20.
In Video: Day and night are in balance at the time of the equinoxPA19 March 2018 at 11:54 amThe spring, or vernal equinox, marks the first day of spring, which this year is March 20.