How many days until spring?
Live countdown to the spring equinox — the astronomical first day of spring. Auto-detects your hemisphere; toggle if needed.
When is the first day of spring?
The first day of spring is the vernal equinox — the moment when the sun crosses the celestial equator heading north (in the Northern Hemisphere) or south (in the Southern Hemisphere). On this day, night and day are nearly equal in length everywhere on Earth.
In the Northern Hemisphere, the spring equinox falls around March 20–21. In the Southern Hemisphere, spring begins around September 22–23 (which is the Northern Hemisphere's autumnal equinox).
Why spring starts on different dates each year
The exact moment of the equinox shifts slightly each year because the calendar year (365 or 366 days) doesn't perfectly match Earth's orbital period (~365.2422 days). Leap years partially correct this drift, causing the equinox to land on slightly different days.
Meteorological vs astronomical spring
Weather services often use meteorological spring — which starts March 1 in the Northern Hemisphere — for simplicity and for aligning with calendar months. This tool uses the astronomical spring equinox, which is the traditional first moment of the season.
Track spring with Left
Add the spring equinox as a countdown in Left and watch the days shrink on your Home Screen widget. You can label it "First day of spring" and set it to repeat annually so it's always ready for next year.
Start noticing what matters.
Download Left on your iPhone to see the time you have left, dates you are looking forward to, build the habits you want to keep, and become a better version of yourself.
Scan with your camera to find Left on the App Store. Or search "Left" on the App Store.