9:15 pm – 9:45 pm
when conditions allow, i.e. when temps are >50°F, Dew Point >45°F, Heating Degree Days <9, atmosphere stable, no pressure drops, no strong wind, no rain in the area.
Little chance of a flight before dark since recent rains have provided abundant food

Sunset: 8:14 pm
Dark: 8:44 pm (10-20 minutes earlier if cloudy)
Sunrise: 6:41 am