<![CDATA[In managing the use of labor effectively, contractors must understand worker productivity. Labor productivity is an important factor in the efficiency of a construction project and can have a significant impact on project performance. This study aims to assess the effective, ineffective, and contributing working time of the Drainage Rehabilitation Project in Ubud Regency and to identify the factors that affect the productivity of the workforce on this project. The methodology used was productivity ratings, which were categorized into three groups: effective working time, contributory working time, and ineffective working time. The results showed that during the five days of observation, effective working time amounted to 83 hours and 6 minutes, ineffective working time was 22 hours and 20 minutes, and contributory work time was only 5 hours and 36 minutes. Key factors that affect productivity include working hours and labor behavior, such as being late, ineffective time spent smoking, conversing with coworkers, and leaving work zones. In addition, productivity decreased on Fridays due to shorter working hours related to religious observance, resulting in an average project productivity of only 72.58%.]]>
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