By introducing this utility function, we ensure that any output value
is converted back to an ISO 8601 date and time string in UTC timezone.
Overall, it harmonize and factorize the way we output
values from date picker components.
Refactor the original DatePicker component to utilize the newly created shared
common DatePickerAux component. This modification enhances code consistency,
and promotes the reuse of the DatePickerAux across date inputs variants.
