condition mean min max 4 h after light 11.11684 11.03417 11.16745 8 h after light 11.155376666666667 11.10277 11.19051 12 h after light 10.965096666666666 10.92131 10.99624 4 h after dark 10.495716666666665 10.464189999999999 10.513739999999999 8 h after dark 10.471653333333332 10.36952 10.633339999999999 12 h after dark 10.46804 10.38848 10.50911