condition mean min max 4 h after light 579.391523 423.954974 734.828072 8 h after light 521.7036175 484.642096 558.765139 12 h after light 578.293832 484.486012 672.101652 4 h after dark 522.709067 444.44763 600.970504 8 h after dark 374.3878385 245.235928 503.539749 12 h after dark 489.099572 489.099572 489.099572