---
title: "readAttributeTrustedTimeSource(completion:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclustertimesynchronization/readattributetrustedtimesource(completion:)"
---

# readAttributeTrustedTimeSource(completion:)

## Declaration

```swift
func readAttributeTrustedTimeSource(completion: @escaping @Sendable (MTRTimeSynchronizationClusterTrustedTimeSourceStruct?, (any Error)?) -> Void)
```

```swift
func readAttributeTrustedTimeSource() async throws -> MTRTimeSynchronizationClusterTrustedTimeSourceStruct
```