Daylight Hours

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The Northern Hemisphere illuminated by the sun at its highest point during the summer solstice, signifying the longest day of the year.

Summer Solstice 2026 longest day Northern Hemisphere arrives June 21

At 4:24 A.M. EDT on June 21, 2026, the Northern Hemisphere will officially experience its longest day, a precise astronomical moment marking the zenith of solar illumination. This specific timing, con

Dr. Evelyn Reed·June 21, 2026