condition mean min max 0 h after light 7.110635 6.85911 7.36216 4 h after light 9.99708 9.17796 10.8162 8 h after light 9.606095 8.24019 10.972 4 h after dark 8.357565000000001 8.01967 8.69546 8 h after dark 5.893105 5.35252 6.43369 12 h after dark 7.6652000000000005 7.33885 7.99155