---
title: ultimateMasterClock
framework: coremedia
role: symbol
role_heading: Instance Property
path: coremedia/cmtimebase/ultimatemasterclock
---

# ultimateMasterClock

## Declaration

```swift
var ultimateMasterClock: CMClock { get }
```

## See Also

### Deprecations

- [master](coremedia/cmtimebase/master.md)
- [masterClock](coremedia/cmtimebase/masterclock.md)
- [masterTimebase](coremedia/cmtimebase/mastertimebase.md)