Max View:
`maxView` must be >= `minView` and `startView`
Min View:
`minView` must be <= `maxView` and `startView` `minView` determines when selection is triggered.
Start View:
`startView` must be between (or equal to) `maxView` and `minView`
Minute step:
`minuteStep` has not effect if `minView` is not set to `'minute'`

      <dl-date-time-picker
        maxView="{{maxView}}"
        minView="{{minView}}"
        startView="{{startView}}"
        minuteStep="{{minuteStep}}"
        [(ngModel)]="selectedDate"
      >
      </dl-date-time-picker>

Selected Date: {{selectedDate}}