Sets the factor that's used to scale time in the animation where:
- 1 = normal speed (the default)
- 0.5 = half speed
- 2 = double speed
For example, if an animation's duration is 2 but its
it will take 4 seconds to finish. If you nest that animation in a timeline whose
timeScale is 0.5 as well, it would take 8 seconds to finish.
You can even tween the
timescale to gradually slow it down or speed it up.