Night Work 2 : According to international standards this includes work between midnight and 5.00 a.m. National law or practice usually determines which hours are considered night work
Robert Heron (Senior specialist on Labour Administration) and Liesbeth Unger (former Associate Expert on Labour Administration and Labour Law of ILO East Asia Multidisciplinary Advisory Team ILO/EASMAT in Bangkok), Glossary of Labour Administration and Related Terms, International Labour Office, ISBN 92-2-112011-2, International Labour Organization ILO, First Ed. 1999. http://igtplus.mcut.edu.tw/assets/attached/1818/or iginal/Glossary%20of%20labour%20administration%20a nd%20related%20terms.pdf?1368696482, (Lbr Law and Ind Rltn - Brit) {783}