condition mean min max 4 h after light 423.2025315 201.847441 644.557622 8 h after light 537.45448 511.058262 563.850698 12 h after light 598.488282 358.026103 838.950461 4 h after dark 1827.0403045 939.617783 2714.462826 8 h after dark 2631.572086 1305.456047 3957.688125 12 h after dark 1463.675096 1463.675096 1463.675096