FORMULA NEEDED FOR BUTTON

[stevejjjjjjjjjj]

HI All

I have created a clock in and out system for staff, and to make it easier my brother wants a 30 min, 1 hour and 2 hour break button. I cant for the life of me work out the macros and formulas for this to create a button. Does anyone have this for me please

 

[awoohaw]

what do you want the button to do when it is clicked? I'm guessing you want 30,60, or 120 minutes to be used in some kind of formula or action. How is the 30, 60, or 120 minutes to be selected?