Season Calculator autumnal equinox Timeanddate.com http://www.timeanddate.com/calendar/seasons.html Seasons Calculator Timeanddate.com Equinoxes & Solstices 2000-2049 June 20 to 22 occurs around September 22 or 23 occurs around September 22 or 23 Seasons Calculator occurs around March 20 or 21 June 20 to 22 Vernal Equinox occurs around March 20 or 21 9:57 AM June 20 to 22 occurs around September 22 or 23 occurs around September 22 or 23 autumnal equinox, which arrives at 7:29 p.m. on Sept. 22. http://www.timeanddate.com/calendar/seasons.html http://www.timeanddate.com/calendar/seasons.html timeanddate.com/calendar/seasons.html Seasons Calculator http://www.timeanddate.com/calendar/seasons.html Timeanddate.com 10:14 PM PDT June 20 to 22 http://www.timeanddate.com/calendar/seasons.html occurs around September 22 or 23 Season Calculator occurs around September 22 or 23 June 20 to 22 1:14 a.m. EDT occurs around March 20 or 21 1:14 a.m. EDT June 20 to 22 Seasons Calculator ? Seattle, U.S.A. - Washington years ... Seasons Calculator autumnal equinox autumnal equinox occurs around March 20 or 21 timeanddate.com/calendar/seasons.html Seasonal Calculator and more When is the equinox in my city? Timeanddate.com Seasons Calculator Seasons Calculator We welcomed it in at 4:22AM EST