Fixes #12113 - Add timezone to date histogram aggregations for TSVB

src/core_plugins/metrics/public/kbn_vis_types/request_handler.js

@@ -1,5 +1,6 @@
 import { validateInterval } from '../lib/validate_interval';
 import { dashboardContextProvider } from 'plugins/kibana/dashboard/dashboard_context';
+import { timezoneProvider } from 'ui/vis/lib/timezone';
 
 const MetricsRequestHandlerProvider = function (Private, Notifier, config, timefilter, $http) {
   const dashboardContext = Private(dashboardContextProvider);
@@ -8,12 +9,13 @@ const MetricsRequestHandlerProvider = function (Private, Notifier, config, timef
   return {
     name: 'metrics',
     handler: function (vis /*, appState, uiState, queryFilter*/) {
+      const timezone = Private(timezoneProvider)();
 
       return new Promise((resolve) => {
         const panel = vis.params;
         if (panel && panel.id) {
           const params = {
-            timerange: timefilter.getBounds(),
+            timerange: { timezone, ...timefilter.getBounds() },
             filters: [dashboardContext()],
             panels: [panel]
           };

src/core_plugins/metrics/server/lib/vis_data/__tests__/build_request_body.js

@@ -49,6 +49,7 @@ const body = JSON.parse(`
         }
     ],
     "timerange": {
+        "timezone": "UTC",
         "max": "2017-01-26T20:52:35.881Z",
         "min": "2017-01-26T20:37:35.881Z"
     }
@@ -104,6 +105,7 @@ describe('buildRequestBody(req)', () => {
                 'field': '@timestamp',
                 'interval': '10s',
                 'min_doc_count': 0,
+                'time_zone': 'UTC',
                 'extended_bounds': {
                   'min': 1485463055881,
                   'max': 1485463955881

src/core_plugins/metrics/server/lib/vis_data/request_processors/annotations/date_histogram.js

@@ -6,10 +6,12 @@ export default function dateHistogram(req, panel, annotation) {
     const timeField = annotation.time_field;
     const { bucketSize, intervalString } = getBucketSize(req, 'auto');
     const { from, to } = getTimerange(req);
+    const { timezone:time_zone } = req.payload.timerange;
     _.set(doc, `aggs.${annotation.id}.date_histogram`, {
       field: timeField,
       interval: intervalString,
       min_doc_count: 0,
+      time_zone,
       extended_bounds: {
         min: from.valueOf(),
         max: to.valueOf() - (bucketSize * 1000)

src/core_plugins/metrics/server/lib/vis_data/request_processors/series/__tests__/date_histogram.js

@@ -11,6 +11,7 @@ describe('dateHistogram(req, panel, series)', () => {
     req = {
       payload: {
         timerange: {
+          timezone: 'UTC',
           min: '2017-01-01T00:00:00Z',
           max: '2017-01-01T01:00:00Z'
         }
@@ -42,6 +43,7 @@ describe('dateHistogram(req, panel, series)', () => {
                 field: '@timestamp',
                 interval: '10s',
                 min_doc_count: 0,
+                time_zone: 'UTC',
                 extended_bounds: {
                   min: 1483228800000,
                   max: 1483232400000
@@ -67,6 +69,7 @@ describe('dateHistogram(req, panel, series)', () => {
                 field: '@timestamp',
                 interval: '10s',
                 min_doc_count: 0,
+                time_zone: 'UTC',
                 extended_bounds: {
                   min: 1483225200000,
                   max: 1483228800000
@@ -95,6 +98,7 @@ describe('dateHistogram(req, panel, series)', () => {
                 field: 'timestamp',
                 interval: '20s',
                 min_doc_count: 0,
+                time_zone: 'UTC',
                 extended_bounds: {
                   min: 1483228800000,
                   max: 1483232400000

src/core_plugins/metrics/server/lib/vis_data/request_processors/series/date_histogram.js

@@ -7,11 +7,13 @@ export default function dateHistogram(req, panel, series) {
     const { timeField, interval } = getIntervalAndTimefield(panel, series);
     const { intervalString } = getBucketSize(req, interval);
     const { from, to }  = offsetTime(req, series.offset_time);
+    const { timezone:time_zone } = req.payload.timerange;
 
     set(doc, `aggs.${series.id}.aggs.timeseries.date_histogram`, {
       field: timeField,
       interval: intervalString,
       min_doc_count: 0,
+      time_zone,
       extended_bounds: {
         min: from.valueOf(),
         max: to.valueOf()