Celebrate the spring equinox 2017 with our equinox dates and times—plus facts and folklore about the first day of spring. Also, join us for our live telescope show today, Monday, March 20! Find out more information.
When Does Spring Begin?
The March equinox is Monday, March 20, 2017 at 6:29 A.M. EDT.
Astronomically speaking, the equinox falls on March 19 or 20 every year, marking spring’s beginning in the Northern Hemisphere (whereas it announces fall’s arrival in the Southern Hemisphere). The equinox happens at the same moment worldwide, even if our clock times reflect a different time zone.