The contractor and every subcontractor shall pay every such laborer, mechanic, or apprentice compensation at the overtime rates established by the Board of Estimates, which shall not be less than 1½ times the regular hourly rate of pay, for all hours worked in excess of 8 hours in any work day, on a Saturday, Sunday or a legal holiday designated as an overtime holiday by the Board of Estimates. No overtime hours, however, shall be compensated for more than once and overtime shall be paid only on the regular hourly rate of pay and not on the fringe benefits or their cash equivalents, provided for in <cite data-path="|5|§25-17">§ 25-17 of this subtitle</cite>. City Code, 1950, art. 1, §14(b) 1966, art. 1, §16(d) 1976/83, art. 1, §19(c)(2) Ord. 45-225 Ord. 59-1960 Ord. 67-969 Ord. 73-348 Ord. 08-085