Increment time in military format in a textbox

[fosters_]

Hi,

I have a text box that I filled with the current time
In military format… and now I want to be able to
Press the arrow keys to scroll through time…

I got it to work with the date… but I can't figure this out

Thank you

[lancer102rus]

step 1 day = 1
step 1 hour = 1/24
step 1 minute = 1/24/60
step 1 second = 1/24/60/60