Long Hours of Working


24th International Working Time Symposiumexternal icon
September 9-13, 2019, Couer D’Alene, Idaho

The theme of this 5-day meeting is “Innovations in Research and Practice Improving Shiftworker Health and Safety.” This biennial symposium will be hosted in the United States for the first time since 1995. This meeting brings together an international group of scientists, industry members, labor representatives, government officials, health and safety professionals, and policy makers to discuss the latest science and practice of working time arrangements, implications thereof for workers and society, and strategies to mitigate the adverse health and safety consequences of shiftwork. The conference is co-hosted by Washington State University and the Working Time Society, a committee of the International Commission on Occupational Health (ICOH).

Working Hours, Sleep and Fatigue Forum: Meeting the Needs of American Workers and Employers
September 13-14, 2019, Couer D’Alene, Idaho

Taking place after the 24th International Shift Work and Working Time Symposium, the forum will present and encourage discussion of research gaps/needs and effective countermeasures related to working hours, sleep, and fatigue among U.S. workers and employers. Everyone interested in worker safety including researchers, academicians, safety professionals, labor union representatives, industry leaders, policy makers, government representatives are invited to attend, listen and share their views on this important topic.

11th International Conference on Managing Fatigue
March 16 to 19, 2020 in Fremantle, Western Australia

This biennial meeting is a forum for research updates and discussion in the fatigue management community. The conference target audience includes occupational health and safety professionals, transportation staff, researchers, road safety experts, military personnel, aviation experts, freight and heavy vehicle professionals, defense, science and technology organizations, medical professionals, and road authorities. Abstract submission opens March 25 and ends July 31, 2019. See for more information icon


10th International Conference on Managing Fatigue in Transportationexternal icon
March 20-23, 2017, San Diego, CA

NIOSH was pleased to be a co-sponsor of this international conference. The Conference was co-hosted by Virginia Tech Transportation Institute and the National Transportation Safety Board, with numerous co-sponsors including Department of Transportation agencies, the National Safety Council and industry groups. Abstracts and presentations are available on the conference website.

Workshop: Shift Work at Night, Artificial Light at Night, and Circadian Disruptionexternal icon
March 10-11, 2016, National Institute of Environmental Health Sciences

Videos of the workshop presentations and materials are available.

Page last reviewed: August 5, 2015