8:50 pm – 9:20 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.
Not much of a chance of  a good flight until conditions stabilize

Sunset: 8:13 pm
Dark: 8:43 pm (10-20 minutes earlier if cloudy)
Sunrise: 6:42 am