condition mean min max 4 h after light 301.176467 240.025159 362.327775 8 h after light 415.64095799999996 414.028507 417.253409 12 h after light 501.80832150000003 469.966871 533.649772 4 h after dark 951.7093995 779.237123 1124.181676 8 h after dark 899.2976424999999 764.944051 1033.651234 12 h after dark 407.916014 407.916014 407.916014