Time to Fill is a key recruitment metric that measures the number of calendar days it takes to find and hire a new employee. The clock typically starts when a job requisition is approved and ends when a candidate accepts the job offer. Unlike "Time to Hire," which focuses on the candidate's time in the pipeline, Time to Fill measures the efficiency of the entire recruiting process from the company's perspective. It provides insight into the speed of the hiring team and the difficulty of filling specific roles.