condition mean min max 4 h after light 545.0778645 518.157683 571.998046 8 h after light 247.562474 158.046737 337.078211 12 h after light 161.378236 123.92313 198.833342 4 h after dark 133.4433535 124.453171 142.433536 8 h after dark 139.10930100000002 117.821732 160.39687 12 h after dark 998.854827 998.854827 998.854827