condition mean min max 4 h after light 708.4 708.4 708.4 8 h after light 803.75 734.3 873.2 12 h after light 832.6500000000001 824.7 840.6 4 h after dark 960.4000000000001 845.6 1075.2 8 h after dark 1129.55 947.1 1312.0 12 h after dark 1047.1 834.0 1260.2