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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. Learn more about equinoxes and solstices When Does Spring Start?
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. ©timeanddate.com.
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.
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.
Seasons can be defined in several different ways. The astronomical definition is based on the equinoxes and solstices , and spring begins with the spring equinox or vernal equinox . In the Northern Hemisphere , it is the equinox in March ; south of the equator , it's the September equinox .
Seasons Calculator – Solstices & Equinoxes. Holiday API Services – Download or program with holidays. Countdown to Any Date – Create your own countdown. Calendars – online and print friendly – for any year and month and including public holidays and observances for countries worldwide.
Time API. Get the time at any given coordinate on Earth, calculate time zone conversions. Find the exact time difference with the Time Zone Converter – Time Difference Calculator which converts the time difference between places and time zones all over the world.
Exact time and date of the June solstice and other seasons in Melbourne, Victoria, Australia. When is the first day of Summer and when does each season start?
Earth orbits the Sun at a slant, which is why we have different seasons. ©timeanddate.com. Tilt Causes Seasons. Because Earth orbits the Sun at an angle, the solar energy reaching different parts of our planet is not constant, but varies during the course of a year.
