condition mean min max 3 h after light 251.949 236.145 277.247 6 h after light 278.56933333333336 234.257 322.951 9 h after light 315.77299999999997 302.174 327.827 12 h after light 354.62325 266.671 416.726 3 h after dark 206.48733333333334 176.474 229.781 6 h after dark 164.557 156.718 172.421 9 h after dark 158.543 138.168 173.577 12 h after dark 207.292 192.173 222.411