condition mean min max 0 h after light 122.876 122.437 123.315 4 h after light 247.1205 168.55 325.691 8 h after light 611.7155 555.987 667.444 4 h after dark 232.039 204.541 259.537 8 h after dark 298.7645 295.211 302.318 12 h after dark 144.1105 139.452 148.769