condition mean min max 2 h after light 453.319 388.818 506.031 6 h after light 427.6995 341.533 533.306 10 h after light 420.055 316.164 530.269 14 h after light 437.17900000000003 285.244 536.426 18 h after light 476.20550000000003 366.475 557.106 2 h after dark 491.4613333333333 417.753 570.437