condition mean min max 4 h after light 3387.2230575 2656.939294 4117.506821 8 h after light 3209.9510680000003 2913.924364 3505.977772 12 h after light 2823.4496415 2420.319326 3226.579957 4 h after dark 1908.464137 1808.822485 2008.105789 8 h after dark 1826.111726 1725.211509 1927.011943 12 h after dark 1539.549506 1539.549506 1539.549506