condition mean min max 4 h after light 1607.7861619999999 1377.25836 1838.313964 8 h after light 1374.318627 1306.097505 1442.539749 12 h after light 1463.958991 1431.59071 1496.327272 4 h after dark 1405.6946750000002 1390.155134 1421.234216 8 h after dark 1497.6554855 1289.257994 1706.052977 12 h after dark 1762.924364 1762.924364 1762.924364