---
title: "init(clockStartTime:hostClockStartTime:deltaBetweenPreferredStartTimes:)"
framework: Core Media
role: symbol
role_heading: Initializer
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: "coremedia/cmclock/starttimepattern/init(clockstarttime:hostclockstarttime:deltabetweenpreferredstarttimes:)"
---

# init(clockStartTime:hostClockStartTime:deltaBetweenPreferredStartTimes:)

## Declaration

```swift
init(clockStartTime: CMTime, hostClockStartTime: CMTime, deltaBetweenPreferredStartTimes: CMTime)
```