condition mean min max 4 h after light 9.7322275 8.915585 10.54887 8 h after light 9.9676485 9.838465 10.096832 12 h after light 10.29976 9.838465 10.761055 4 h after dark 9.838465 9.838465 9.838465 8 h after dark 9.082450000000001 8.715519 9.449381 12 h after dark 10.212213 10.212213 10.212213