condition mean min max 4 h after light 11.066780999999999 9.77599 12.357572 8 h after light 12.117467999999999 11.828802 12.406134 12 h after light 9.971922 9.921367 10.022477 4 h after dark 10.3230325 9.631354 11.014711 8 h after dark 12.373408000000001 10.800826 13.94599 12 h after dark 10.457684 10.457684 10.457684