Wait some time before doin an action

Is possible do do an action like: at the begging at the scene: hide the object “Object1” and wait like 20 seconds. After 20 seconds do the action (Show the object “Object1”)?

At the beginning of the scene
Hide Object1

If timer “wait” is greater than 20 seconds
Show Object1

This is the only way you can do that and make sure you do not reset the timer.

Here the project

Thanks to everyone i tink i have solved