condition mean min max 4 h after light 603.6 603.6 603.6 8 h after light 546.1 357.2 735.0 12 h after light 377.4 278.1 476.7 4 h after dark 289.25 221.1 357.4 8 h after dark 318.79999999999995 295.2 342.4 12 h after dark 358.85 330.2 387.5