condition mean min max 0 h after light 4.05965 0.0 8.1193 4 h after light 0.0 0.0 0.0 8 h after light 4.13248 0.0 8.26496 4 h after dark 15.979899999999999 15.9484 16.0114 8 h after dark 3.99825 0.0 7.9965 12 h after dark 4.0542 0.0 8.1084