is this possible to change animator parameter through exit time

just want to know is there any way to exit from one parameter to another when time is up to that parameter,
like transitions happened when time elapsed

 

You can use an event. An event is like a keyframe that you put on an animation timeline that can be used to trigger something with code.

 

Or use State Machine Behaviors. But if you're not handy with coding, animation events (as mentioned above) are easier.