Hours of work
Hours of work means all time spent by an employee performing an activity for the benefit of an agency and under the control or direction of the agency. Hours of work are creditable for the purpose of determining overtime pay under subpart D of this part. Section 551.401 of subpart D further explains this term. However, whether time is credited as hours of work is determined by considering many factors, such as the rules in subparts D and E of this part, provisions of law, Comptroller General decisions, OPM decisions and policy guidance, agency policy, negotiated agreements, the rules in part 550 of this chapter (for hours of work for travel), and the rules in part 410 of this chapter (for hours of work for training).