<label class="control-label">{{
  controller.startTimeLabel || 'Time range start time'
}}</label>
<div class="controls">
  <grr-form-value value="controller.formStartTime"></grr-form-value>
</div>

<label class="control-label">{{
  controller.durationLabel || 'Time range duration'
}}</label>
<div class="controls">
  <grr-form-value value="controller.formDuration"></grr-form-value>
</div>
