condition mean min max 4 h after light 4.25847 3.36335 5.15359 8 h after light 4.88203 4.80398 4.96008 12 h after light 5.467455 5.44177 5.49314 4 h after dark 7.73879 7.13149 8.34609 8 h after dark 6.518805 5.78648 7.25113 12 h after dark 6.416980000000001 6.19857 6.63539