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The Seasons Calculator shows the times and dates of Vernal (Spring) & Autumnal (Fall) equinoxes and Summer and Winter solstices all over the world.
Seasons are periods in a year marked by specific weather conditions, temperatures and length of day. Most modern day calendars divide the year in 4 seasons: spring, summer, fall (autumn) and winter.
Seasons happen because Earth's axis is tilted at an angle of about 23.4 degrees and different parts of Earth receive more solar energy than others. Earth's orbit around the Sun is elliptical. Seasons are caused by Earth's axial tilt and temperatures and nature's processes are affected.
The Earth does not move at a constant speed in its elliptical orbit, so the seasons are not of equal length. On average, winter lasts for 89.0 days in the Northern Hemisphere and 93.6 days in the Southern Hemisphere. Average season lengths: March equinox to June solstice: 92.8 days; June solstice to September equinox: 93.6 days
The Earth does not move at a constant speed in its elliptical (oval) orbit, so the seasons are not of equal length. On average, fall lasts for 89.8 days in the Northern Hemisphere and 92.8 days in the Southern Hemisphere. Average season lengths: March equinox to June solstice: 92.8 days; June solstice to September equinox: 93.6 days
Calendars – online and print friendly – for any year and month and including public holidays and observances for countries worldwide.
The Duration Calculator calculates the number of days, months and years between two dates.
Time Calculator: Duration Between Two Times and Dates. How many years, months, days, hours, minutes, and seconds are there between two moments in time?
In the Northern Hemisphere, spring starts in March; south of the equator, it begins in September. Find out the spring date for 2024 and 2025. Spring brings rising temperatures, longer days, and new beginnings. ©iStockphoto.com/baza178.
There are only two moments each year when neither pole points toward the Sun, and the Sun lies directly above Earth’s equator. These moments are the equinoxes. The March equinox happens sometime between March 19 and 21. The September equinox occurs sometime between September 21 and 24.
