How to implement a time event in the game?

Question

C++ / C#

Hello!
How to make a window with news appear when a certain time is reached? I'm trying to make it in Unity 2D, not a platformer, just a camera, a scene and poking buttons. Just to check the current one with the one you need in Upate()?

Answer 1

Just to check the current one with the one you need in Upate()?

Yes.
Well, you can in FixedUpdate for "optimization".

Answer 2

For this, coroutines were invented.