Night (Aviation) : The time between the end of evening civil twilight and the beginning of morning civil twilight, as published in the American Air Almanac, converted to local time
National Wildfire Coordinating Group (NWCG), Glossary of Wildland Fire Terminology, NWCG Program Management Unit, National Interagency Fire Center, Boise, ID, USA 2014. http://www.nwcg.gov/pms/pubs/glossary/pms205.pdf, (For Fr - Amer) {45}
