A project is a temporary activity that has a predetermined start and completion time. The project in this studyhas a 12-day delay in starting work, so by using the S curve that has been made by the previous contractor, itcan be ascertained that the completion of the project will experience delays. Therefore, it is necessary toreschedule the project with various work methods so that it is completed within the specified time limit. In thisstudy, researchers used the shift system to speed up the duration of the project to be analyzed by comparingthe Precedence Diagram Method (PDM), Fast-Track and Critical Path Method to get work that was on thecritical path and accelerated. After the acceleration duration is known, it will be analyzed regarding theimpact of time duration on project costs. From the results of the analysis, it was found that the normalduration of 180 days experienced a delay of 12 days so that in normal conditions an additional fee wasrequired to pay a fine of Rp. 210,714,001.34. After accelerating the time duration from 180 days to 152 daysfor the CPM and PDM methods, while for the fast track method it becomes 147 days. The impact of timeacceleration on costs increased by 0.55%, namely Rp. 96,612,415.31 for the PDM and CPM methods, whilethecostfasttrackmethod increased by 0.53%,namelyRp.92,695,605.71fromthe normalduration.