condition mean min max 4 h after light 12.200533333333333 12.10502 12.36465 8 h after light 12.24208 12.17061 12.36784 12 h after light 12.222316666666666 12.13298 12.28839 4 h after dark 12.167703333333334 12.089139999999999 12.26655 8 h after dark 11.92795 11.78415 12.01131 12 h after dark 11.95198 11.82877 12.0937