Time addition

[Simba]

I have four text boxes. Three of the boxes will have intervals of time place
in them. The fourth box will show the sum. I am trying to add time values
such as .15(minutes), .30 and .45. When the value of time equals to .60, I
would like for the minute value to be replaced by a whole number. I hope you
guys can understand what I am asking. Can anyone help?

 

[Susanna]

Hi Simba,
My initial thoughts are to create an invisible box that adds up your time
values. In your Sum box have a rule to say that If value of invisible box is
60, then show 1. Could this work for you?
/Susanna