5 U.S.C. § 5506: Computation of extra pay based on standard or daylight saving time

When an employee as defined by section 2105 of this title or an individual employed by the government of the District of Columbia is entitled to extra pay for services performed between or after certain named hours of the day or night, the extra pay is computed on the basis of either standard or daylight saving time, depending on the time observed by law, custom, or practice where the services are performed.