condition mean min max 4 h after light 659.697 658.244 661.15 8 h after light 695.0409999999999 686.201 703.881 12 h after light 634.131 627.606 640.656 4 h after dark 491.73449999999997 439.236 544.233 8 h after dark 620.779 608.792 632.766 12 h after dark 635.8910000000001 620.245 651.537