condition mean min max 4 h after light 280.074677 245.583666 314.565688 8 h after light 320.900804 285.437813 356.363795 12 h after light 330.023685 294.814958 365.232412 4 h after dark 270.5838175 246.935578 294.232057 8 h after dark 188.5906545 171.180021 206.001288 12 h after dark 216.942792 216.942792 216.942792