How to give Nativescript timepicker 24-hour format instead of 12-hour?

Question

I use <TimePicker class="activity-picker" /> to add a time picker to my android application. But the time picker shows the time in a 12-hour format instead of 24-hours. I want to be able to pick the time in a 24-hour format.

I already tried to use <TimePicker class="activity-picker" :hourFormat="24" /> but the format does not change.