Gravity Forms Date Time Calculator Final Beta

The first and final frontier beta!

I finished the first draft of Gravity Forms Date Time Calculator at 3am on a Monday morning over five years ago. Since the wee hours of that fateful morning, it’s been used by over 300 Gravity Perks customers. Through their feedback, we’ve steadily polished and improved this deceptively simple plugin into a capable calculating machine.

We’re thrilled to announce the first public release of this perk, which will also be, somewhat dramatically, its final beta (v1.0-beta-3.0). This plugin is ready for its moment in the sun.

Use Date and Time Fields in Calculations

Date and Time fields will now automatically be available for insertion in your Gravity Forms’ calculation formulas.

Calculate Duration Between Dates & Times

Need to calculate how many days your guests will be staying at your Bed & Breakfast? How many days they’ll need to rent your electric bikes? How many hours your part-time employee logged today? Date Time Calculator has you covered! Calculate the duration between any two Date or Time fields.

Every Calculation Unit You Need

Get your results in the unit you need. Years, months, weeks, days, hours, minutes, seconds are all supported!

Calculate Age

Knowing your user’s age is a very useful bit of information. Use it to prevent underage submissions, configure child/senior pricing, or determine customer’s age for past or future milestones.

Calculate Weekend and Week Days

Calculate the number of weekend or weekdays between two dates. This is handy when you’re looking to charge more for weekend rentals or when you’d like to only include weekdays in your work week calculations.

We Want Feedback!

We’ve crunched all the numbers and we’ve checked them all twice. We’re eager for feedback. Are your results quite precise? If you have a suggestion or something else on your mind, use our support form to drop us a line.


  1. Lolo Marchal
    Lolo Marchal September 14, 2021 at 10:40 am


    Is there any way to autopopulate a date field with the value of a date plus a number of weeks?

    For example, a formula similar to this:

    {start_date_field:132} + {number_of_weeks (Quantyt):28.3} weeks

    The resulting value would be the exact date X weeks from now.

    I can’t find a way to do it.

    1. Samuel Bassah
      Samuel Bassah Staff September 14, 2021 at 11:02 am

      Hi Lolo,

      We have a snippet you can use to modify and populate Dates that would work for you. You will find the snippet and details on how to use it in the documentation. The configuration parameter to, modify by field value, as mentioned in the documentation would work for you use case.

      I hope this helps.


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