isHoursOfDarkness property
bool
isHoursOfDarkness
Gets if it is hours of darkness based on the civil twilight.
Hours of darkness are defined as being between the end of the evening civil twilight and the begining of the morning civil twilight.
Implementation
bool get isHoursOfDarkness {
final solarZenith = 90 - sunHorizontalPosition.elevation;
return (solarZenith > 96.0);
}