Told me that law, like wine, is ageless
The first day of spring arrives on varying dates (from March 19-21) in different years for two reasons: Our year is not exactly an even number of days; and Earth’s slightly noncircular orbit, plus the gravitational tug of the other planets, constantly changes our planet’s orientation to the sun from year to year.
This year, spring started Sunday, March 20, at 7:21 p.m. EDT (23:21 UTC). That’s when the so-called vernal equinox occurs.
