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

<ul class="nav gf-timepicker-nav">

	<li class="dashnav-move-timeframe" style="padding-top: 2px">
                <a class='small' ng-click='ctrl.move(-1)'>
                        <i class="fa fa-arrow-left"></i>
                </a>
        </li>
	<li class="dashnav-move-timeframe" style="padding-top: 2px">
                <a class='small' ng-click='ctrl.move(1)'>
                        <i class="fa fa-arrow-right"></i>
                </a>
        </li>
	<li class="dashnav-zoom-out" style="padding-top: 2px">
		<a class='small' ng-click='ctrl.zoom(2)'>
			Zoom Out
		</a>
	</li>

	<li>
		<a bs-tooltip="ctrl.tooltip" data-placement="bottom" ng-click="ctrl.openDropdown()" class="gf-timepicker-nav-btn">
			<i class="fa fa-clock-o"></i>
			<span ng-bind="ctrl.rangeString"></span>
			<span ng-show="ctrl.isUtc" class="gf-timepicker-utc">
				UTC
			</span>

			<span ng-show="ctrl.dashboard.refresh" class="text-warning">
				&nbsp;
				Refresh every {{ctrl.dashboard.refresh}}
			</span>
		</a>
	</li>

	<li class="dashnav-refresh-action">
		<a ng-click="ctrl.timeSrv.refreshDashboard()">
			<i class="fa fa-refresh"></i>
		</a>
	</li>

</ul>