The phrase signifies a specific type of work schedule commonly employed in project management, particularly within industries requiring continuous operation. It denotes that an individual is scheduled to work 10 hours out of a possible 12-hour timeframe, with the remaining time allocated for breaks, handover, or other non-productive tasks. For example, a worker might be on-site from 7:00 AM to 7:00 PM, but actively engaged in their primary duties for only 10 of those hours.
The implementation of such a structure offers a balance between operational demands and worker well-being. It allows for extended coverage while mitigating potential fatigue associated with continuous, prolonged activity. This approach can enhance productivity over time by minimizing errors and promoting a more sustainable workload. Historically, these arrangements arose from the need to maintain operations across multiple shifts while adhering to safety regulations and labor standards that limit continuous work hours.