condition mean min max 4 h after light 202.1041055 197.89829 206.309921 8 h after light 359.600853 224.930514 494.271192 12 h after light 512.04542 485.474168 538.616672 4 h after dark 305.7941555 221.144225 390.444086 8 h after dark 312.5194135 252.599817 372.43901 12 h after dark 138.675693 138.675693 138.675693