condition mean min max 0 h after light 9.28453 8.9172 9.65186 2 h after light 4.229935 3.60784 4.85203 4 h after light 4.21171 3.81266 4.61076 8 h after light 5.12167 4.4632 5.78014 12 h after light 10.83751 9.25982 12.4152 2 h after dark 11.77435 11.6098 11.9389 4 h after dark 13.81185 12.392 15.2317 8 h after dark 15.952 15.7819 16.1221 12 h after dark 11.53565 11.4614 11.6099