OK, I was curious, because now your clock is in sync with my own excel countdown clock. BTW, Marv the reason for excel macro not running on your side might be your macro security settings. If on high, it would probably block macros without telling you.
The difference between your and the NASA clock is because you probably use the actual time of your servers clock or an internet time signal.
NASA uses the clock of the user computer and here at work my computer is at least 5 minutes late.
So whoever sees a difference between NASA and SSM-Fans might check his clock first.
To answer my own question: What time is it? Its the L- time. Time till launch including every hold.
Armin
By the way, did anybody else tried my excel macro countdown clock?