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Summer Solstice | Today is the Longest Day of the Year


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Monday, June 21 - today the UK will enjoy 16 hours and 38 minutes of daylight.

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The sun will rise at 4.52am and set at 9.26pm

During the celestial annual journey of the Earth round the Sun, the Summer Solstice is the moment when the Sun is at its furthermost point north of the Equator.

In the Northern Hemisphere, the 2021 Summer Solstice is on 21 June, at 03:32 GMT.

What is a solstice and why does it happen?

The Summer Solstice takes place when one of the Earth’s poles has its maximum tilt towards the sun, offering the longest period of daylight. In the Northern Hemisphere, that is when the North Pole is tilted towards the sun. 

In winter we tilt further away from the sun, and the winter solstice takes place when the North Pole is tilting its furthest away. The shortest day of the year will be December 21.

Dates for equinoxes and solstices in the Northern and Southern Hemispheres are the same, but in opposite seasons. For example, the Summer Solstice north of the Equator is mirrored south of the Equator by the Winter Solstice.

Find below precise solstice and equinox dates and times for the Northern Hemisphere, for 2021.

  • Date & Time of Solstices & Equinoxes in 2021
  • Vernal Equinox (Spring) March 20 2021 09:37 GMT
  • Summer Solstice (Summer) June 21 2021 03:32 GMT
  • Autumnal Equinox (Fall) September 22 2021 19:21 GMT
  • Winter Solstice (Winter) December 21 2021 15:59 GMT
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