Setting intervals of minutes

By default, the time picker displays minutes from 0 through 59. To restrict the time selections available to users, you can configure your application to display intervals of minutes on time controls, instead.

Before you begin:  In the layout of the form that you are editing Adding a DateTime control to a layout
This setting is ignored if the Use native control on mobile option is selected.
On the Presentation tab of the Properties panel, select the Allow time to be displayed in the interval of minutes option and click the corresponding number of minutes: 5, 10, 15, 20, or 30.