condition mean min max 0 h after light 6.515805 5.82613 7.20548 2 h after light 1.820005 1.60164 2.03837 4 h after light 6.785535 6.10939 7.46168 8 h after light 6.799825 5.93289 7.66676 12 h after light 6.132215 5.55212 6.71231 2 h after dark 9.00879 7.64408 10.3735 4 h after dark 7.56794 7.54043 7.59545 8 h after dark 9.230654999999999 8.49457 9.96674 12 h after dark 7.47151 6.65297 8.29005