condition mean min max 3 h after light 5.68765 4.89865 6.28012 6 h after light 5.80415 3.60482 7.29478 9 h after light 8.604023333333334 7.38519 9.45078 12 h after light 8.607325 5.71217 9.73392 3 h after dark 8.738513333333334 8.48258 8.97031 6 h after dark 8.11465 6.78026 9.47021 9 h after dark 5.3403833333333335 4.54185 6.7796 12 h after dark 4.0433699999999995 3.70179 4.38495