condition mean min max 4 h after light 497.28206666666665 494.8577 499.4465 8 h after light 337.05836666666664 202.4705 482.8528 12 h after light 353.6035 311.2844 410.7844 16 h after light 530.6392 473.1608 571.4303 4 h after dark 515.3572333333334 502.5374 525.0179 8 h after dark 358.3202 242.4975 431.9639