---
title: startTimeCode
framework: usdkit
role: symbol
role_heading: Instance Property
path: usdkit/usdlayer/starttimecode
---

# startTimeCode

The first time code in the layer’s animation range. nil if not authored.

## Declaration

```swift
var startTimeCode: USDLayer.TimeCode? { get nonmutating set }
```

## See Also

### Setting the time range

- [endTimeCode](usdkit/usdlayer/endtimecode.md)
- [timeCodesPerSecond](usdkit/usdlayer/timecodespersecond.md)
- [USDLayer.TimeCode](usdkit/usdlayer/timecode.md)
- [USDLayer.TimeOffset](usdkit/usdlayer/timeoffset.md)