This post is my exact question but it is closed for follow up:
 

When I go to the SD software then Lorby-SI AxisAndOhs and add a text guage, where do I put the formula mentioned here?

%(E:LOCAL·TIME,·Hours)·s0·int%!02d!·':'·scat·%l0·l0·int·-·60·*·s1·int%!02d!·scat·':'·scat·%l1·l1·int·-·60·*·int%!02d!·scat·(>L:LTIME,·String)

I put it in Variable 1, A: and pasted the above code and clicked submit.

Nothing is displayed.  If i can figure this one out then I can do all of the other calculations that I would like!

Thanks for helping out!!

Joe

28 minutes ago, IrwinMFletcher said:

I put it in Variable 1, A: and pasted the above code and clicked submit.

Wrong type. A: are pure simulator variables. What you have there is a script and would require type S:

But I'm not sure that you can use it that way on a text gauge, that is more multi gauge territory.