condition mean min max 4 h after light 9.789405 9.421633 10.157177 8 h after light 9.6294485 9.192432 10.066465 12 h after light 10.021239999999999 9.305942 10.736538 4 h after dark 11.442934999999999 10.648817 12.237053 8 h after dark 11.9995185 10.736538 13.262499 12 h after dark 11.169291 11.169291 11.169291