condition mean min max 4 h after light 835.6517745 763.119568 908.183981 8 h after light 941.929519 809.539749 1074.319289 12 h after light 1257.429248 1214.847623 1300.010873 4 h after dark 1109.2840664999999 1015.142141 1203.425992 8 h after dark 1302.390002 1179.62487 1425.155134 12 h after dark 1194.220637 1194.220637 1194.220637