condition mean min max 4 h after light 1.883155 1.84392 1.92239 8 h after light 3.252265 3.16696 3.33757 12 h after light 6.34732 5.0409 7.65374 4 h after dark 6.09864 6.04092 6.15636 8 h after dark 5.43807 4.9575 5.91864 12 h after dark 6.732044999999999 6.09739 7.3667