Time-to-Hire vs Time-to-Fill Explained

These two terms are used interchangeably so often, across job postings, dashboards, and recruiting reports, that many teams assume they describe the same thing. They do not. They measure different parts of the hiring process, start their clocks at different moments, and reveal different insights about where a hiring process is actually slowing down.

At AptiCareers, we work with recruiting teams who often discover that tracking the wrong one of these two metrics has led them to "fix" a part of the process that was never the actual bottleneck. This guide explains the distinction clearly, with formulas and a worked example, so your team can track both with confidence.

Time-to-fill, defined properly

Time-to-fill measures the full span of a hiring process, beginning the day a role is officially approved or requisitioned, not the day the job ad goes live, and ending the day a candidate accepts the offer.

The formula is straightforward: time-to-fill equals the date of offer acceptance minus the date the job requisition was approved.

For example, if a hiring manager receives budget approval for a new role on January 15th, the job posting goes live on January 20th, and the chosen candidate accepts an offer on March 1st, the time-to-fill spans the full period from January 15th to March 1st, roughly 45 days. That figure includes the time it took to get the posting live, not only the time candidates spent moving through the pipeline.

This metric speaks to the organisation's internal process as a whole, not solely the recruiting team's speed. A long time-to-fill may point to slow requisition approvals, a posting that sat in draft for two weeks before publishing, or a hiring manager who took longer than expected to share feedback. None of that is necessarily about candidates at all. It reflects how the company moves internally before recruiting even has the chance to begin.

Time-to-hire, defined properly

Time-to-hire is narrower in scope. It begins the moment a candidate enters the pipeline, typically the date of application, and ends on the same final date as time-to-fill, the day the offer is accepted.

The formula: time-to-hire equals the date of offer acceptance minus the date of application.

Using the same example, if the candidate who accepted the offer on March 1st actually applied on January 25th, the time-to-hire for that hire is approximately 35 days, notably shorter than the 45-day time-to-fill, because the role had already been open for ten days before this particular candidate applied.

This metric reflects the efficiency of the process from the candidate's perspective. It indicates how long someone waits between submitting an application and receiving a decision. A long time-to-hire usually points to bottlenecks recruiters have more direct control over, too many interview rounds, slow feedback turnaround between stages, or approval chains that drag once a strong candidate has already been identified.

Why the gap between the two matters

The distance between time-to-fill and time-to-hire is essentially a measure of how long it takes a company to begin actively pursuing candidates after deciding to hire. A small gap suggests the internal process from approval to posting is efficient. A large gap suggests real time is being lost before recruiting even has a chance to start the clock on candidates.

Consider two companies hiring for an identical role. Company A approves the requisition and has the job live within two days. Company B takes three weeks to finalise the job description and obtain sign-off from three separate stakeholders before posting. Both companies may have an identical, well-run 25-day time-to-hire once a candidate applies. Yet Company A's time-to-fill will be roughly 27 days, while Company B's will extend past 45. Recruiting performance is the same in both cases. The outcome for how long the seat stays empty is not.

This is precisely why tracking only one of these metrics can give a distorted picture. A company focused exclusively on time-to-hire might commend itself for a tight, well-run interview process while overlooking the fact that requisitions sit unapproved for three weeks before recruiting even begins.

What counts as a reasonable benchmark

Averages vary considerably by industry, seniority, and role type, but general benchmarks are useful as a starting reference. The overall hiring process across most industries tends to land around 36 days on average, and time-to-fill specifically tends to run upwards of 35 days for the median company. Specialised or senior roles, legal, executive, and certain technical positions, regularly take longer, sometimes considerably so. Entry-level and high-volume roles tend to move faster by comparison.

If your figures sit well above these general ranges, particularly for roles that should not be especially difficult to fill, that is worth investigating rather than overlooking. Candidates notice slow processes too. More than half of job seekers expect to hear back within two weeks of an interview, and qualified candidates with other options generally will not wait beyond that.

How to put these two metrics to work

The practical value of separating these metrics is that they point towards different solutions.

If time-to-fill is consistently long while time-to-hire is reasonable, the issue usually lives upstream of recruiting. Examine how long it takes to secure requisition approval, how long a job description sits before publishing, and whether hiring managers are slow to confirm what they actually need before the search even begins. This tends to be a stakeholder alignment issue more than a recruiting process issue.

If time-to-hire is the longer of the two, the problem usually sits inside the pipeline itself. Too many interview rounds, slow feedback between stages, or candidates left waiting on a decision that should have taken two days but stretched to two weeks. This is where recruiters and hiring managers have the most direct ability to make changes, since it is their process to refine, rather than a budget approval chain several departments removed.

Tracking both metrics side by side, ideally broken out by department, role type, and seniority level, provides a far clearer diagnostic than either figure alone. A blended, organisation-wide average can obscure the fact that engineering roles are dragging the overall figure upward while sales roles are filling within a reasonable timeframe.

A worked example to make this concrete

Consider a mid-size company hiring a product manager. The hiring manager requests budget approval on March 1st. Finance and the department head sign off on March 8th. Recruiting finalises the job description and posts it on March 12th. The first strong candidate applies on March 20th. After three interview rounds and a reference check, that candidate accepts an offer on April 22nd.

Time-to-fill here runs from March 1st to April 22nd, 52 days. Time-to-hire runs from March 20th to April 22nd, 33 days. The 19-day gap between the two is entirely internal process time, the week spent waiting on budget sign-off plus the four days between approval and the posting going live. None of that delay relates to how candidates moved through the pipeline. A company tracking only time-to-hire would conclude the process took 33 days and feel reasonably satisfied. In doing so, it would overlook nearly three weeks of avoidable delay sitting upstream.

Reducing both numbers without cutting corners

A few changes tend to move both metrics simultaneously, because they address friction that shows up at multiple stages.

Standardising requisition approval, rather than leaving it as an ad hoc back-and-forth between departments, shrinks the front end of time-to-fill directly. Setting a firm cap on interview rounds, and adhering to it, shrinks time-to-hire without compromising the quality of evaluation. Centralising candidate communication so one person owns updates and feedback timelines prevents the multi-day silences that extend both metrics while also damaging candidate experience.

AI-assisted scheduling and screening have shown a measurable effect here as well. Companies using AI-driven interview scheduling report meaningfully better odds of hitting their hiring targets, largely because the back-and-forth of finding a mutual time slot, traditionally a multi-day email exchange, is resolved within minutes. This is one of the more immediate efficiencies AptiCareers helps recruiting teams capture, alongside structured AI interviews that keep evaluation consistent at every stage.

Common questions hiring teams ask about these metrics

Which metric should we report to leadership? Both, ideally side by side. Time-to-fill tends to matter more for workforce planning and budget conversations, since it reflects the full cost of an open seat. Time-to-hire tends to matter more for recruiting team performance, since it isolates what the team directly controls.

Is a shorter number always better? Not automatically. A time-to-hire that is unusually short for a senior or technical role can sometimes mean corners were cut on evaluation, which surfaces later as a poor hire. The goal is the right speed for the role, not simply the fastest possible number across the board.

Why do our numbers look different across departments? Because they probably should. Specialised, senior, or highly competitive roles legitimately take longer to fill than high-volume or entry-level positions. Blending everything into one company-wide average tends to obscure which teams or role types are actually struggling.

The bottom line

Time-to-fill tells you how long a seat remains empty from start to finish, including everything that happens before a candidate ever applies. Time-to-hire tells you how efficiently a candidate moves through the process once they are in it. Neither metric is more important than the other, they simply answer different questions. Track them separately, and your team will know precisely which part of the hiring process needs attention rather than guessing.

Optimize Your Pipelines with AptiCareers

If your team would like help identifying exactly where your hiring process is losing time, AptiCareers offers a closer look at how AI-led interviews and structured scheduling can tighten both metrics. Speak with our team to see how it works for your hiring volume.