# Duration Data field In a xViz Gantt Chart, it's possible to create Gantt Chart without an End Date column. Instead, we can use the project Duration to create the Gantt Chart.

*Image 1: xViz Gantt Chart created with using Duration data field*

We have a dataset with an Actual Start Date and Duration column, but it does not include an Actual End Date column, as shown in the image below:

Now, populate the Actual Start Date and Duration columns into the Start Date and Duration fields, respectively.

*Image 3: Populate Start Date and Duration field*

{% hint style="info" %} The Duration field can only be populated if the End Date data field is empty. {% endhint %} In the final result, the Gantt Chart is created without using the End Date and is displayed in the image below.