The summer solstice – the annual moment at which the sun is the highest it ever gets in the sky – occurs today at 1:16 p.m. ET. This time also marks the beginning of astronomical summer in the Northern Hemisphere.
Specifically, the summer solstice is the moment when the sun is directly above the Tropic of Cancer. This is the farthest north the sun ever moves in the sky, which is why the days near the solstice have the most daylight of any days of the year. Today, for instance, Washington, D.C., will have almost 15 hours of daylight and only about nine hours of darkness.
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