condition mean min max 4 h after light 311.239198 248.420875 374.057521 8 h after light 374.1413305 364.896758 383.385903 12 h after light 420.885424 414.065462 427.705386 4 h after dark 422.0936615 421.809424 422.377899 8 h after dark 430.930012 366.098871 495.761153 12 h after dark 235.656974 235.656974 235.656974