condition mean min max 0 h after light 45.722 45.3051 46.1389 4 h after light 16.21705 14.4904 17.9437 8 h after light 11.44045 10.8922 11.9887 4 h after dark 21.2631 20.6587 21.8675 8 h after dark 24.68405 24.4094 24.9587 12 h after dark 35.9037 29.8404 41.967