condition mean min max 4 h after light 1654.4745155 1574.716974 1734.232057 8 h after light 1708.0960965 1600.103165 1816.089028 12 h after light 1449.487176 1324.770518 1574.203834 4 h after dark 1464.231605 1264.846538 1663.616672 8 h after dark 1519.9884625 1450.398714 1589.578211 12 h after dark 1922.912649 1922.912649 1922.912649