condition mean min max 4 h after light 288.239141 240.169302 336.30898 8 h after light 326.267338 293.546135 358.988541 12 h after light 234.8275095 181.832085 287.822934 4 h after dark 310.8766895 259.571252 362.182127 8 h after dark 280.5280925 214.806299 346.249886 12 h after dark 208.608926 208.608926 208.608926