We have an example for the DateTimePicker where the UTC date value is displayed by directly converting the time using the setHours method based on the difference between GMT and UTC. You use this approach based on the timezone you are receiving from the backend:
On the other hand, we have a feature request for adding a timezone prop for the DateTimePicker component. I changed the FR to have it for all components in the dateinputs package, and added a vote on your behalf in order to increase its priority: