As Northern Hemisphere summer nears its end the daily periods of sunlight continue shortening, changing at their fastest around the equinox on September 22. On Monday, August 19, (the day of the full Moon), morning twilight will begin at 5:24 AM, sunrise will be at 6:26 AM, solar noon at 1:11 PM when the Sun will reach its maximum altitude of 63.6 degrees, sunset will be at 7:57 PM, and evening twilight will end at 8:58 PM. By Tuesday, September 17, (the day of the full Moon after next), morning twilight will begin at 5:54 AM, sunrise will be at 6:52 AM, solar noon at 1:02 PM when the Sun will reach its maximum altitude of 53 degrees, sunset will be at 7:12 PM, and evening twilight will end at 8:10 PM.