condition mean min max 4 h after light 306.604858 209.511114 403.698602 8 h after light 311.898354 200.847742 422.948966 12 h after light 342.8491095 326.616672 359.081547 4 h after dark 535.077897 379.232057 690.923737 8 h after dark 464.34478049999996 398.462826 530.226735 12 h after dark 512.808951 512.808951 512.808951