condition mean min max 4 h after light 11.368756999999999 11.278763 11.458751 8 h after light 10.649034499999999 9.54291 11.755159 12 h after light 11.874367 9.622198 14.126536 4 h after dark 10.462631 10.19618 10.729082 8 h after dark 10.4625185 10.391312 10.533725 12 h after dark 10.964399 10.964399 10.964399