Summer Solstice Day 2024 is on Friday, June 21, 2024: What day is the summer solstice this year?

Friday, June 21, 2024 is Summer Solstice Day 2024. Summer solstice 2013: Northern Hemisphere's longest day, highest ... On the summer solstice in

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Summer solstice happens on the same day, every year, June 21st (first day of summer), and is the longest day of the year.

What is summer solstice?

The summer solstice occurs exactly when the Earth's axial tilt is most inclined towards the sun at its maximum of 23° 26'. Though the summer solstice is an instant in time, the term is also colloquially used like Midsummer to refer to the day on which it occurs. Except in the polar regions (where daylight is continuous for many months during the spring and summer), the day on which the summer solstice occurs is the day of the year with the longest period of daylight. Thus the seasonal significance of the Summer solstice is in the reversal of the gradual shortening of nights and lengthening of days. The summer solstice occurs in June in the Northern Hemisphere and in December in the Southern Hemisphere.

Summer?????

Based on astronomy, summer begins on the day of the summer solstice and ends on the day of the autumn equinox.

More technically, at an equinox, the Sun is at one of two opposite points on the celestial sphere where the celestial equator (i.e. declination 0) and ecliptic intersect. These points of intersection are called equinoctial points—the vernal point and the autumnal point. By extension, the term equinox may be used to denote an equinoctial point.

There is either an equinox (autumn and spring) or a solstice (summer and winter) on approximately the 21st day of the last month of every quarter of the calendar year. On a day which has an equinox, the center of the Sun will spend a nearly equal amount of time above and below the horizon at every location on Earth and night and day will be of nearly the same length. The word equinox derives from the Latin words aequus (equal) and nox (night).

For the year 2008 summer in the United States starts EXACTLY on June 20, 2008 at 23:59hrs.

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