Retroactive Effect of Change in Tour of Duty

The entitlement of an employee to holiday premium pay for work performed on January 2, 1974, because of a change in his basic workweek was questioned. His schedule at the beginning of the workweek of December 30, 1973, to January 5, 1974, was Sunday and Saturday off and work on the other days but was changed on January 2, 1974, to Monday and Tuesday off instead. He was not entitled to holiday pay for the day in question which would have been a day off in lieu of January 1, 1974, under the new schedule since the new workweek may not retroactively affect holiday pay entitlement and he had been paid holiday pay for January 1, 1974.