Clock Scrolling

How do I make my plus/minus buttons scroll the hours on my clock. I would like to be able to press and hold the button to make it scroll through the hours as a real clock would. I have tried, OnSelected, OnLongClick, OnMouseDown and none of these are acting as I would like them to.

Here is what I have now
OnClick
If text is >= 12
set text to = 1

If text is >= 1
set text to = var+1

Hi powelds!

It looks like this post may help with what you’re looking for: