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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.
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 change because Earth's rotational axis tilts away or towards the Sun during the course of a year. September Equinox The Sun shines directly on the Equator on the September equinox and the length of day and night is nearly equal, but not quite.
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.
Calendars – online and print friendly – for any year and month and including public holidays and observances for countries worldwide.
Sep 23, 2016 · Exact time and date of the March equinox and other seasons in Cape Town, South Africa. When is the first day of Spring and when does each season start?
Overview of holidays and many observances in Singapore during the year 2024.
