HOUR OF DAY ... MONTH OF YEAR ...

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In August in London, the sun reaches between 10° and 25° above the horizon roughly during the early morning hours from 5:45 AM to 7:30 AM and in the evening from 7:15 PM to 8:35 PM (BST), flanking the much higher midday peak. [1]

 

Morning Window (10° to 25°)

• Starts: Around 5:45 AM, shortly after sunrise (~5:32 AM) as the sun climbs past 10°.

• Passes 25°: By approximately 7:30 AM, as the sun continues rising higher into the morning sky. [1, 2, 3, 4, 5]

 

Evening Window (10° to 25°)

• Drops to 25°: Around 7:15 PM, as the afternoon sun begins its descent.

• Reaches 10°: Down to about 8:15 PM to 8:35 PM, just before the sun sets near 8:38 PM. [1, 2, 3]

- source: google.com