---
title: start
framework: usd
role: article
role_heading: Article
path: usd/start
---

# start

The moment to begin an animation.

## Overview

Overview This property is a normalized percentage. The default value is 0.0, which corresponds to the beginning of the animation. The maximum value is 1.0, which represents the end of the animation. Declaration uniform double start = 0.0

## See Also

### Properties

- [info:id](usd/info-id.md)
- [affectedObjects](usd/affectedobjects.md)
- [duration](usd/duration.md)
- [reversed](usd/reversed.md)
- [animationSpeed](usd/animationspeed.md)
- [reverses](usd/reverses.md)