Conversions
How Many Days Until Spring?
Last updated: May 31, 2026
Written by Blake Boege
An astronomical countdown tool that calculates the duration until the next Spring Equinox (first day of Spring) and displays a live ticking countdown in days, hours, minutes, and seconds.
View the live countdown to the first day of Spring. Find out exactly how many days, weeks, hours, and seconds are left until March 20.
Quick Answer
Find the exact count of days remaining until the next Spring Equinox (March 20) computed live.
Loading live countdown...
Examples
Spring Equinox Date
March 20 (Approx.)
Equinox Event
Astronomical Event
How it works
The live timer computes the differences between now and March 20 in local timezone milliseconds:
Countdown · Days = (March 20 - Today) / 86,400,000
How the Days Until Spring are Calculated
To calculate the number of days until the start of spring, find the difference in milliseconds between the equinox target date (March 20 at midnight) and the current local system date. Since the spring equinox occurs annually, if March 20 of the current year has already passed, the calculation shifts to next year's March 20 date.
Math: (Target Date Time − Current Time) in Milliseconds ÷ 1,000 ÷ 60 ÷ 60 ÷ 24 = Days Remaining
Astronomical vs. Meteorological Seasons
Seasons can be divided in two ways:
- Astronomical Spring: Starts on the spring equinox (March 19–21) and ends on the summer solstice (June 20–22). This is governed by the Earth's tilt relative to the sun.
- Meteorological Spring: Defined by climatologists as the three transition months: March, April, and May. It begins on March 1 and ends on May 31.
Related Date & Holiday Countdowns
Explore our other dynamic date and seasonal countdown tools:
- How Many Days Until Summer? — count down to the summer solstice (June 21).
- How Many Days Until Fall? — count down to the autumn equinox (September 22).
- How Many Days Until New Year? — track the next January 1.
- Countdown to Any Date — calculate days until any custom target date.
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Frequently asked questions
In the Northern Hemisphere, spring starts on the spring equinox (also called the vernal equinox), which typically falls on March 19, March 20, or March 21. For calendar tracking, March 20 is widely used as the general start date.
The vernal equinox is the moment when the sun crosses the celestial equator from south to north. This results in nearly equal amounts of day and night hours across the globe.
Divide the remaining days by 7 to determine the number of weeks. For example, if there are 70 days left, it is exactly 10 weeks until March 20.
In the Southern Hemisphere, the seasons are reversed. Spring starts on the September equinox (approx. September 22), while March 20 marks the beginning of autumn.
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