condition mean min max 0 h after light 6.199375 6.08591 6.31284 2 h after light 8.94507 8.35686 9.53328 4 h after light 6.5714950000000005 6.03137 7.11162 8 h after light 2.28299 1.93873 2.62725 12 h after light 4.731945 4.73158 4.73231 2 h after dark 2.332605 2.13405 2.53116 4 h after dark 2.58018 2.44359 2.71677 8 h after dark 4.521255 4.2391 4.80341 12 h after dark 8.153205 7.25454 9.05187