condition mean min max 4 h after light 2660.250555333333 2586.183333 2701.323333 8 h after light 3272.537222 2856.793333 3657.263333 12 h after light 3901.4511113333333 3664.38 4114.336667 1.5 h after dark 4021.351111 3731.313333 4189.38 5.5 h after dark 3455.608889 3160.796667 3898.96 9.5 h after dark 2627.3944443333335 2355.213333 2930.51