<!--
{
  "availability" : [
    "iOS: 16.0.0 -",
    "iPadOS: 16.0.0 -",
    "macCatalyst: 16.0.0 -",
    "macOS: 13.0.0 -",
    "tvOS: 16.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 9.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Swift",
  "identifier" : "/documentation/Swift/SuspendingClock/measure(_:)-1zuvn",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Swift"
    ],
    "preciseIdentifier" : "s:12_Concurrency5ClockPAAE7measurey8DurationQzyyYaKYCXEYaKF::SYNTHESIZED::s:12_Concurrency15SuspendingClockV"
  },
  "title" : "measure(_:)"
}
-->

# measure(_:)

Measure the elapsed time to execute an asynchronous closure.

```
nonisolated(nonsending) func measure(_ work: nonisolated(nonsending) () async throws -> Void) async rethrows -> Self.Instant.Duration
```

## Discussion

```
  let clock = ContinuousClock()
  let elapsed = await clock.measure {
     await someWork()
  }
```

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)