---
title: "CMSyncMightDrift(_:_:)"
framework: coremedia
role: symbol
role_heading: Function
path: "coremedia/cmsyncmightdrift(_:_:)"
---

# CMSyncMightDrift(_:_:)

Returns a Boolean value that indicates whether it’s possible for one timebase or clock to drift relative to the other.

## Declaration

```swift
func CMSyncMightDrift(_ clockOrTimebase1: CMClockOrTimebase, _ clockOrTimebase2: CMClockOrTimebase) -> Bool
```

## Discussion

Discussion A timebase can drift relative to another if they are ultimately mastered by clocks that can drift relative to each other.

## See Also

### Determining Clock Drift

- [CMClockMightDrift(_:otherClock:)](coremedia/cmclockmightdrift(_:otherclock:).md)