condition mean min max 4 h after light 490.9850225 456.157505 525.81254 8 h after light 448.209283 367.078211 529.340355 12 h after light 373.896489 244.518196 503.274782 4 h after dark 266.7757 223.402187 310.149213 8 h after dark 192.098743 147.778527 236.418959 12 h after dark 207.610669 207.610669 207.610669