§ 2112. Authority to change working hours
In a port at which the customary working hours begin before 8 a.m. or end after 5 p.m., the Secretary may regulate the working hours of the officers and employees referred to in section
2111 of this title so that those hours conform to the prevailing working hours of the port. However—
(1)
the total period for which overtime pay may be required under section
2111 of this title may not be more than 15 hours between any 2 periods of ordinary working hours on other than Sundays and holidays;