condition mean min max 4 h after light 1204.0 1204.0 1204.0 8 h after light 1381.7 1364.7 1398.7 12 h after light 1522.65 1512.7 1532.6 4 h after dark 1590.35 1487.0 1693.7 8 h after dark 1885.85 1720.5 2051.2 12 h after dark 1793.1 1586.8 1999.4