Timing objects against the time scale?

I have been pausing the game by simply setting the time scale to zero. It works very well.

However, I want to start timing some events when the game is paused, in other words, without regards to the time scale.
For example, I have a "stage clear" event that needs to pause everything on the screen so that enemies don't continue to charge at the player. The easiest way to do this is simply set the time scale to zero to pause the game.

But to actually start the next level, I am invoking a function to do just that, timed to execute once the music has finished playing.
But if I put the time scale to zero, that invoked function will never be called.

Is there some way I can tell a particular object/script to ignore timescale and just operate at normal speeds regardless of timescale?

 

You can use a coroutine that keeps track of the time using Time.realTimeSinceStartup.

 

I think they added in 4.5 "unscaledDeltaTime", which is the real time delta time.

 

Unscaled delta time sounds much easier to work with than the real time since start up.

 

There are a few unscaled options. Handy because I needed something similar recently.