condition mean min max 0 h after light 5.18838 5.14626 5.2305 4 h after light 8.859515 8.01174 9.70729 8 h after light 16.1645 15.973 16.356 4 h after dark 12.27185 11.5583 12.9854 8 h after dark 12.470099999999999 12.3377 12.6025 12 h after dark 6.1662099999999995 4.85037 7.48205