Lead Time

Definition
Lead time is the total wall-clock time from a customer request to its delivery, including every queue and handoff in between.

Why it matters

Customers judge a company by lead time, far more than by any internal efficiency measure. They feel the wait, not the effort behind it. Lead time is usually dominated by idle time: requests sitting in an inbox, a task waiting for approval, a booking that is days away. That means it can often be cut sharply by removing a delay, with nobody working faster.

How to apply it

  • Pick the one or two processes a customer feels most, such as onboarding or a support request, and measure those first.
  • Time from the customer's request to the moment they get the result, not from when work starts.
  • Map every handoff and queue, and find the step where requests wait longest.
  • Fix the waiting before touching the work. Removing a two-day delay usually beats speeding up a twenty-minute task.
  • Track it on the same process over time, since a fix can quietly slip back.
  • Set a target and treat a miss as a signal to investigate.

What it is

Lead time starts the moment a customer asks and ends when they receive what they asked for. It counts every hour in between, working or waiting. The idea comes from lean manufacturing, and it is not related to a sales lead. A client who signs up on Monday and is fully onboarded the next Monday has experienced seven days of lead time, even if the hands-on work took one hour.

Common mistakes

  • Confusing it with cycle time, which counts only the time spent actively working.
  • Reporting an average and ignoring the slowest cases, which are the ones customers remember.
Worked example

Suppose a ten-person agency takes on website projects. From the day a client signs to the day the site goes live, the job takes 34 days. The hands-on work adds up to about nine. The rest is waiting: a brief sits unread for four days, a design waits six days for sign-off, and a content request goes unanswered for two weeks. The team maps each stage on a Trello board, with one column per stage and one card per client, and notes the date each card moves. The queues are visible at once. The team sets two rules: a brief is reviewed within one working day, and sign-off reminders go out on day two. Lead time falls from 34 days to 19, and nobody works faster.

Tools in the example

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  1. Article

    Cycle Time

    The active working time inside lead time. The two are different: lead time is what the customer waits, cycle time is what the team spends working, and the gap between them is queueing.

  2. Article

    Bottleneck

    The step where requests wait longest.

  3. Article

    Onboarding Funnel

    The sequence lead time is often measured across.

  4. Article

    Lead

    A different idea despite the shared word; a lead is a prospective buyer, not a duration.