condition mean min max 2 h after light 647.503 637.418 667.524 6 h after light 642.553 632.405 660.41 10 h after light 699.1743333333334 677.152 730.697 2 h after dark 648.0559999999999 622.329 696.554 6 h after dark 670.8403333333333 651.281 693.734 10 h after dark 645.9246666666667 625.492 668.745