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Cycle time

Cycle time is the elapsed time from when work starts on an item (first commit, status change to In Progress) to when it ships to users. It measures team flow without the queue noise that lead time includes. Shorter cycle times correlate with smaller batch sizes, fewer hand-offs, and faster feedback — all primary objectives of lean delivery practice.

Cycle time is the metric to optimize when you want to improve flow. Unlike lead time (which includes wait time before work starts), cycle time is what the team actually controls — once work begins, what slows it down? Common cycle-time killers: code-review wait (often 30-60% of cycle time on slow teams), test-suite duration, environment provisioning, approval gates. P75 cycle time per story type is a more useful operational metric than mean — outliers are where to dig.

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