Timer function

So I am making this very basic Administration note/NLR warning when you die.
I want the respawn button to say Respawn(“Number of seconds remaining to spawn here”)

I believe I would use timer.create, but I do not know the function for it.

[editline]1st November 2013[/editline]

So far it looks like this,

I know it looks like shit, but this is just a starting point, much will be added.

I want the respawn button to say “Respawn(Timeleft)”

Wiki.garrysmod.com (sidebar)->Library->timer.