What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.

  • Profile Image

    Why is my calculation coming out funny.

    Asked by AENYtrav on July 01, 2014 at 03:43 PM

    I am fine with the 24 hour clock. I also followed the calculation steps here: http://www.jotform.com/answers/395948-Hour-Minute-Calculator. My imput will be 2:20 and 5:40, I will get a result of 3.33,  when its only 20 minutes and should be expressed as 2.20. What am I missing here? See example 10 is coming out as .17.


    Page URL:

  • Profile Image
    JotForm Support

    Answered by david on July 01, 2014 at 05:04 PM


    The output is expressed as a decimal number, not as an expression of time.  So when there was a 3hr and 20min difference, that was 3 and 1/3 of and hour or 3.33.  The image you posted is a 15hr and 10min difference, or 15 and 10/60 or and hour or 15.166666667 which was rounded to 15.17.  Please let us know if there is anything else we can assist you with and we will be happy to help.

    Thank you for using Jotform!

  • Profile Image

    Answered by AENYtrav on July 02, 2014 at 10:05 AM

    Thanks! I really didn't think of it that way.

  • Profile Image
    JotForm Support Manager

    Answered by Jeanette on July 02, 2014 at 11:50 AM

    I am very glad to see David's explanation worked out well for you.

    If you have any further unrelated question, please open a new thread and we will be happy to assist you.