Season Countdown
Days until Spring, Summer, Fall and Winter — ranked soonest-first, Northern Hemisphere dates.
How this is calculated
Each season's start is computed from a fixed calendar-date approximation of its astronomical boundary (Spring: March 20, Summer: June 21, Fall: September 22, Winter: December 21), then every result is sorted by days remaining. The real solstice and equinox moments vary by a day or two and by time of day, so this page favors a simple, consistent date over exact minute-level precision — nothing is hardcoded to a specific year, so it stays correct indefinitely.
Frequently asked questions
Are these the exact astronomical solstice/equinox dates?
No. The real solstice and equinox moments shift by up to a day or two from year to year and occur at a specific UTC time, not just a calendar date. This page uses the commonly-cited calendar-date approximation (March 20, June 21, September 22, December 21) for simplicity, which is accurate to within a day in almost all years.
Does this use Northern Hemisphere seasons?
Yes. The Southern Hemisphere's seasons are reversed — for example, its summer starts around the date this page labels "winter." Southern Hemisphere users should mentally swap Spring with Fall, and Summer with Winter.
Does this update automatically each year?
Yes — every date on this page is recalculated fresh from today's date on every page load, the same as the rest of ZenCountdown's countdown pages.