condition mean min max 4 h after light 476.11104250000005 470.924364 481.297721 8 h after light 489.991632 455.001288 524.981976 12 h after light 497.51531550000004 478.287133 516.743498 4 h after dark 412.94282999999996 379.258038 446.627622 8 h after dark 439.8227065 401.291345 478.354068 12 h after dark 527.015651 527.015651 527.015651