---
title: CMTimeRoundingMethod.quickTime
framework: coremedia
role: symbol
role_heading: Case
path: coremedia/cmtimeroundingmethod/quicktime
---

# CMTimeRoundingMethod.quickTime

Rounds using the QuickTime method.

## Declaration

```swift
case quickTime
```

## Discussion

Discussion This method uses CMTimeRoundingMethod.roundTowardZero if converting from larger to smaller scale (more precision to less precision), but uses CMTimeRoundingMethod.roundAwayFromZero if converting from smaller to larger scale (less precision to more precision). This method never rounds a negative number down to 0, but instead returns the smallest magnitude negative time (-1 / newTimescale).

## See Also

### Rounding Methods

- [CMTimeRoundingMethod.roundHalfAwayFromZero](coremedia/cmtimeroundingmethod/roundhalfawayfromzero.md)
- [CMTimeRoundingMethod.roundAwayFromZero](coremedia/cmtimeroundingmethod/roundawayfromzero.md)
- [CMTimeRoundingMethod.roundTowardZero](coremedia/cmtimeroundingmethod/roundtowardzero.md)
- [CMTimeRoundingMethod.roundTowardPositiveInfinity](coremedia/cmtimeroundingmethod/roundtowardpositiveinfinity.md)
- [CMTimeRoundingMethod.roundTowardNegativeInfinity](coremedia/cmtimeroundingmethod/roundtowardnegativeinfinity.md)