grafana/public/app/features/dashboard/timepicker/settings.html

<div class="editor-row">
<div class="gf-form-group">
	<div class="gf-form">
		<span class="gf-form-label width-10">Auto-refresh</span>
		<input type="text" class="gf-form-input max-width-25" ng-model="ctrl.panel.refresh_intervals" array-join>
	</div>
	<div class="gf-form">
		<span class="gf-form-label width-10">Now delay now-</span>
		<input type="text" class="gf-form-input max-width-25"
				ng-model="ctrl.panel.nowDelay" placeholder="0m"
				valid-time-span
				bs-tooltip="'Enter 1m to ignore the last minute (because it can contain incomplete metrics)'"
				data-placement="right">
	</div>
</div>