diff --git a/superset/assets/javascripts/components/CachedLabel.jsx b/superset/assets/javascripts/components/CachedLabel.jsx
new file mode 100644
index 00000000000..e649fad3b2b
--- /dev/null
+++ b/superset/assets/javascripts/components/CachedLabel.jsx
@@ -0,0 +1,68 @@
+import React, { PropTypes } from 'react';
+import { Label } from 'react-bootstrap';
+import moment from 'moment';
+import TooltipWrapper from './TooltipWrapper';
+
+const propTypes = {
+  onClick: PropTypes.func,
+  cachedTimestamp: PropTypes.string,
+  className: PropTypes.string,
+};
+
+class CacheLabel extends React.PureComponent {
+  constructor(props) {
+    super(props);
+    this.state = {
+      tooltipContent: '',
+      hovered: false,
+    };
+  }
+
+  updateTooltipContent() {
+    const cachedText = this.props.cachedTimestamp ? (
+      <span>
+        Loaded data cached <b>{moment(this.props.cachedTimestamp).fromNow()}</b>
+      </span>) :
+      'Loaded from cache';
+
+    const tooltipContent = (
+      <span>
+        {cachedText}.
+        Click to force-refresh
+      </span>
+    );
+    this.setState({ tooltipContent });
+  }
+
+  mouseOver() {
+    this.updateTooltipContent();
+    this.setState({ hovered: true });
+  }
+
+  mouseOut() {
+    this.setState({ hovered: false });
+  }
+
+  render() {
+    const labelStyle = this.state.hovered ? 'primary' : 'default';
+    return (
+      <TooltipWrapper
+        tooltip={this.state.tooltipContent}
+        label="cache-desc"
+      >
+        <Label
+          className={this.props.className}
+          bsStyle={labelStyle}
+          style={{ fontSize: '10px', marginRight: '5px', cursor: 'pointer' }}
+          onClick={this.props.onClick}
+          onMouseOver={this.mouseOver.bind(this)}
+          onMouseOut={this.mouseOut.bind(this)}
+        >
+          cached <i className="fa fa-refresh" />
+        </Label>
+      </TooltipWrapper>);
+  }
+}
+CacheLabel.propTypes = propTypes;
+
+export default CacheLabel;
diff --git a/superset/assets/javascripts/components/TooltipWrapper.jsx b/superset/assets/javascripts/components/TooltipWrapper.jsx
index 56f0c148e2a..fb476c410c7 100644
--- a/superset/assets/javascripts/components/TooltipWrapper.jsx
+++ b/superset/assets/javascripts/components/TooltipWrapper.jsx
@@ -4,7 +4,7 @@ import { slugify } from '../modules/utils';
 
 const propTypes = {
   label: PropTypes.string.isRequired,
-  tooltip: PropTypes.string.isRequired,
+  tooltip: PropTypes.node.isRequired,
   children: PropTypes.node.isRequired,
   placement: PropTypes.string,
 };
diff --git a/superset/assets/javascripts/dashboard/Dashboard.jsx b/superset/assets/javascripts/dashboard/Dashboard.jsx
index 2094fb2ddc4..59e8e8874e1 100644
--- a/superset/assets/javascripts/dashboard/Dashboard.jsx
+++ b/superset/assets/javascripts/dashboard/Dashboard.jsx
@@ -2,6 +2,7 @@ import React from 'react';
 import { render } from 'react-dom';
 import d3 from 'd3';
 import { Alert } from 'react-bootstrap';
+import moment from 'moment';
 
 import GridLayout from './components/GridLayout';
 import Header from './components/Header';
@@ -143,13 +144,15 @@ export function dashboardContainer(dashboard, datasources) {
     done(slice) {
       const refresh = slice.getWidgetHeader().find('.refresh');
       const data = slice.data;
+      const cachedWhen = moment(data.cached_dttm).fromNow();
       if (data !== undefined && data.is_cached) {
         refresh
         .addClass('danger')
-        .attr('title',
-              'Served from data cached at ' + data.cached_dttm +
-                '. Click to force refresh')
-                .tooltip('fixTitle');
+        .attr(
+          'title',
+          `Served from data cached ${cachedWhen}. ` +
+          'Click to force refresh')
+        .tooltip('fixTitle');
       } else {
         refresh
         .removeClass('danger')
diff --git a/superset/assets/javascripts/explorev2/components/ChartContainer.jsx b/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
index f6ea3469fb0..cc0524251b8 100644
--- a/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
+++ b/superset/assets/javascripts/explorev2/components/ChartContainer.jsx
@@ -2,7 +2,7 @@ import $ from 'jquery';
 import Mustache from 'mustache';
 import React, { PropTypes } from 'react';
 import { connect } from 'react-redux';
-import { Alert, Collapse, Label, Panel } from 'react-bootstrap';
+import { Alert, Collapse, Panel } from 'react-bootstrap';
 import visMap from '../../../visualizations/main';
 import { d3format } from '../../modules/utils';
 import ExploreActionButtons from './ExploreActionButtons';
@@ -11,6 +11,7 @@ import TooltipWrapper from '../../components/TooltipWrapper';
 import Timer from '../../components/Timer';
 import { getExploreUrl } from '../exploreUtils';
 import { getFormDataFromControls } from '../stores/store';
+import CachedLabel from '../../components/CachedLabel';
 
 const CHART_STATUS_MAP = {
   failed: 'danger',
@@ -265,17 +266,10 @@ class ChartContainer extends React.PureComponent {
                 {this.props.chartStatus === 'success' &&
                 this.props.queryResponse &&
                 this.props.queryResponse.is_cached &&
-                  <TooltipWrapper
-                    tooltip="Loaded from cache. Click to force refresh"
-                    label="cache-desc"
-                  >
-                    <Label
-                      style={{ fontSize: '10px', marginRight: '5px', cursor: 'pointer' }}
-                      onClick={this.runQuery.bind(this)}
-                    >
-                      cached
-                    </Label>
-                  </TooltipWrapper>
+                  <CachedLabel
+                    onClick={this.runQuery.bind(this)}
+                    cachedTimestamp={queryResponse.cached_dttm}
+                  />
                 }
                 <Timer
                   startTime={this.props.chartUpdateStartTime}
diff --git a/superset/assets/javascripts/modules/superset.js b/superset/assets/javascripts/modules/superset.js
index 1fb0cd9864b..434419e6fa6 100644
--- a/superset/assets/javascripts/modules/superset.js
+++ b/superset/assets/javascripts/modules/superset.js
@@ -56,19 +56,12 @@ const px = function () {
     .tooltip();
   }
   const Slice = function (data, datasource, controller) {
-    let timer;
     const token = $('#token_' + data.slice_id);
     const containerId = 'con_' + data.slice_id;
     const selector = '#' + containerId;
     const container = $(selector);
     const sliceId = data.slice_id;
     const formData = applyDefaultFormData(data.form_data);
-    let dttm = 0;
-    const stopwatch = function () {
-      dttm += 10;
-      const num = dttm / 1000;
-      $('#timer').text(num.toFixed(2) + ' sec');
-    };
     slice = {
       data,
       formData,
@@ -114,8 +107,6 @@ const px = function () {
       },
       /* eslint no-shadow: 0 */
       always(data) {
-        clearInterval(timer);
-        $('#timer').removeClass('btn-warning');
         if (data && data.query) {
           slice.viewSqlQuery = data.query;
         }
@@ -123,13 +114,10 @@ const px = function () {
       done(payload) {
         Object.assign(data, payload);
 
-        clearInterval(timer);
         token.find('img.loading').hide();
         container.fadeTo(0.5, 1);
         container.show();
 
-        $('#timer').addClass('label-success');
-        $('#timer').removeClass('label-warning label-danger');
         $('.query-and-save button').removeAttr('disabled');
         this.always(data);
         controller.done(this);
@@ -173,7 +161,6 @@ const px = function () {
         container.html(errHtml);
         container.show();
         $('span.query').removeClass('disabled');
-        $('#timer').addClass('btn-danger');
         $('.query-and-save button').removeAttr('disabled');
         this.always(o);
         controller.error(this);
@@ -213,10 +200,6 @@ const px = function () {
         token.find('img.loading').show();
         container.fadeTo(0.5, 0.25);
         container.css('height', this.height());
-        dttm = 0;
-        timer = setInterval(stopwatch, 10);
-        $('#timer').removeClass('label-danger label-success');
-        $('#timer').addClass('label-warning');
         $.getJSON(this.jsonEndpoint(), (queryResponse) => {
           try {
             vizMap[formData.viz_type](this, queryResponse);
diff --git a/superset/assets/spec/javascripts/components/CachedLabel_spec.jsx b/superset/assets/spec/javascripts/components/CachedLabel_spec.jsx
new file mode 100644
index 00000000000..a720a8ce575
--- /dev/null
+++ b/superset/assets/spec/javascripts/components/CachedLabel_spec.jsx
@@ -0,0 +1,26 @@
+import React from 'react';
+import { expect } from 'chai';
+import { describe, it } from 'mocha';
+import { shallow } from 'enzyme';
+import { Label } from 'react-bootstrap';
+
+import CachedLabel from '../../../javascripts/components/CachedLabel';
+
+describe('CachedLabel', () => {
+  const defaultProps = {
+    onClick: () => {},
+    cachedTimestamp: '2017-01-01',
+  };
+
+  it('is valid', () => {
+    expect(
+      React.isValidElement(<CachedLabel {...defaultProps} />),
+    ).to.equal(true);
+  });
+  it('renders', () => {
+    const wrapper = shallow(
+      <CachedLabel {...defaultProps} />,
+    );
+    expect(wrapper.find(Label)).to.have.length(1);
+  });
+});