The source of the success of a project in fulfilling the three aspects namely cost, quality, and time from one of the existing resources is the productivity of its workforce. The time study method is the right method used to determine the standard time of a job. The average value of productivity on column formwork is 10.65 m2/OH, beam formwork is 46.89 m2/OH, and plate formwork is 73.29 m2/OH. Column reinforcement work 204.51 kg/OH, beam reinforcement work 349.93 kg/OH, plate reinforcement work 287.57 kg/OH. Column casting work 7.96 m3/OH, beam casting work 25.31 m3/OH, plate casting work 15.81 m3/OH. Several factors greatly affect labor productivity. Comparison of the work productivity of reinforced concrete structures in the Ubud Market project based on the calculation results obtained the average productivity coefficient in the field of labor.