"The summer solstice heralds the beginning of summer in the Northern Hemisphere. The timing of the summer solstice depends on when the Sun reaches its northernmost point of the equator.
This summer solstice is the day with the most hours of sunlight during the whole year.
...Sunrise and sunset calculator for how many hours of sunlight you get in your location."
Summer solstice - Wikipedia, the free encyclopedia
mourner/suncalc @ GitHub
"SunCalc is a tiny BSD-licensed JavaScript library for calculating sun position, sunlight phases (times for sunrise, sunset, dusk, etc.), moon position and lunar phase for the given location and time, created by Vladimir Agafonkin (@mourner) as a part of the SunCalc.net project.
Most calculations are based on the formulas given in the excellent Astronomy Answers articles aboutposition of the sun and the planets. You can read about different twilight phases calculated by SunCalc in the Twilight article on Wikipedia."
ESRL Global Monitoring Division - GRAD Group @NOAA
Summer solstice - Wikipedia, the free encyclopedia
mourner/suncalc @ GitHub
"SunCalc is a tiny BSD-licensed JavaScript library for calculating sun position, sunlight phases (times for sunrise, sunset, dusk, etc.), moon position and lunar phase for the given location and time, created by Vladimir Agafonkin (@mourner) as a part of the SunCalc.net project.
Most calculations are based on the formulas given in the excellent Astronomy Answers articles aboutposition of the sun and the planets. You can read about different twilight phases calculated by SunCalc in the Twilight article on Wikipedia."
ESRL Global Monitoring Division - GRAD Group @NOAA
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