By the end of the month, sunrise occurs at 5:47 a.m., while the Sun sets at 8:10 p.m.. Two weeks later, by mid-August, the shorter days become even more pronounced, with sunrise and sunset times at 6:02 and 7:51, respectively.
The "shorter" days have to do with the Earth's revolution around the Sun, and the 23.5 degree tilt on its axis. By the end of September, the Autumnal Equinox begins a six-month period of "longer nights" and "shorter days" in the Northern Hemisphere.
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Paul