Export date utility functions as ES6 modules

24 files changed, 256 insertions, 237 deletions

diff --git a/app/assets/javascripts/activities.js b/app/assets/javascripts/activities.js
index 5d060165f4b..d0db7cde262 100644
--- a/app/assets/javascripts/activities.js
+++ b/app/assets/javascripts/activities.js
@@ -2,6 +2,7 @@
 /* global Pager */
 
 import Cookies from 'js-cookie';
+import { localTimeAgo } from './lib/utils/datetime_utility';
 
 class Activities {
   constructor() {
@@ -15,7 +16,7 @@ class Activities {
   }
 
   updateTooltips() {
-    gl.utils.localTimeAgo($('.js-timeago', '.content_list'));
+    localTimeAgo($('.js-timeago', '.content_list'));
   }
 
   reloadActivities() {
diff --git a/app/assets/javascripts/commits.js b/app/assets/javascripts/commits.js
index 9b952ea7b60..be58392135c 100644
--- a/app/assets/javascripts/commits.js
+++ b/app/assets/javascripts/commits.js
@@ -4,6 +4,7 @@
 /* global Pager */
 
 import { pluralize } from './lib/utils/text_utility';
+import { localTimeAgo } from './lib/utils/datetime_utility';
 
 export default (function () {
   const CommitsList = {};
@@ -91,7 +92,7 @@ export default (function () {
       $commitsHeadersLast.find('span.commits-count').text(`${commitsCount} ${pluralize('commit', commitsCount)}`);
     }
 
-    gl.utils.localTimeAgo($processedData.find('.js-timeago'));
+    localTimeAgo($processedData.find('.js-timeago'));
 
     return processedData;
   };
diff --git a/app/assets/javascripts/compare.js b/app/assets/javascripts/compare.js
index 9e5dbd64a7e..d8cbf7e99c5 100644
--- a/app/assets/javascripts/compare.js
+++ b/app/assets/javascripts/compare.js
@@ -1,4 +1,5 @@
 /* eslint-disable func-names, space-before-function-paren, wrap-iife, quotes, no-var, object-shorthand, consistent-return, no-unused-vars, comma-dangle, vars-on-top, prefer-template, max-len */
+import { localTimeAgo } from './lib/utils/datetime_utility';
 
 window.Compare = (function() {
   function Compare(opts) {
@@ -81,7 +82,7 @@ window.Compare = (function() {
         loading.hide();
         $target.html(html);
         var className = '.' + $target[0].className.replace(' ', '.');
-        gl.utils.localTimeAgo($('.js-timeago', className));
+        localTimeAgo($('.js-timeago', className));
       }
     });
   };
diff --git a/app/assets/javascripts/deploy_keys/components/key.vue b/app/assets/javascripts/deploy_keys/components/key.vue
index b41d464475f..2a05c6f001e 100644
--- a/app/assets/javascripts/deploy_keys/components/key.vue
+++ b/app/assets/javascripts/deploy_keys/components/key.vue
@@ -1,5 +1,6 @@
 <script>
   import actionBtn from './action_btn.vue';
+  import { getTimeago } from '../../lib/utils/datetime_utility';
 
   export default {
     props: {
@@ -21,7 +22,7 @@
     },
     computed: {
       timeagoDate() {
-        return gl.utils.getTimeago().format(this.deployKey.created_at);
+        return getTimeago().format(this.deployKey.created_at);
       },
       editDeployKeyPath() {
         return `${this.endpoint}/${this.deployKey.id}/edit`;
diff --git a/app/assets/javascripts/diff_notes/models/discussion.js b/app/assets/javascripts/diff_notes/models/discussion.js
index dc43e4b2cc7..1b8a9af9390 100644
--- a/app/assets/javascripts/diff_notes/models/discussion.js
+++ b/app/assets/javascripts/diff_notes/models/discussion.js
@@ -2,6 +2,7 @@
 /* global NoteModel */
 
 import Vue from 'vue';
+import { localTimeAgo } from '../../lib/utils/datetime_utility';
 
 class DiscussionModel {
   constructor (discussionId) {
@@ -71,7 +72,7 @@ class DiscussionModel {
         $(`${discussionSelector} .discussion-header`).append(data.discussion_headline_html);
       }
 
-      gl.utils.localTimeAgo($('.js-timeago', `${discussionSelector}`));
+      localTimeAgo($('.js-timeago', `${discussionSelector}`));
     } else {
       $discussionHeadline.remove();
     }
diff --git a/app/assets/javascripts/job.js b/app/assets/javascripts/job.js
index cf8fda9a4fa..8c011a36dd6 100644
--- a/app/assets/javascripts/job.js
+++ b/app/assets/javascripts/job.js
@@ -2,6 +2,7 @@ import _ from 'underscore';
 import bp from './breakpoints';
 import { bytesToKiB } from './lib/utils/number_utils';
 import { setCiStatusFavicon } from './lib/utils/common_utils';
+import { timeFor } from './lib/utils/datetime_utility';
 
 export default class Job {
   constructor(options) {
@@ -260,7 +261,7 @@ export default class Job {
     if ($date.length) {
       const date = $date.text();
       return $date.text(
-        gl.utils.timeFor(new Date(date.replace(/([0-9]+)-([0-9]+)-([0-9]+)/g, '$1/$2/$3')), ' '),
+        timeFor(new Date(date.replace(/([0-9]+)-([0-9]+)-([0-9]+)/g, '$1/$2/$3'))),
       );
     }
   }
diff --git a/app/assets/javascripts/lib/utils/cache.js b/app/assets/javascripts/lib/utils/cache.js
index 3141f1eeafc..596bd1e388a 100644
--- a/app/assets/javascripts/lib/utils/cache.js
+++ b/app/assets/javascripts/lib/utils/cache.js
@@ -1,4 +1,4 @@
-class Cache {
+export default class Cache {
   constructor() {
     this.internalStorage = { };
   }
@@ -15,5 +15,3 @@ class Cache {
     delete this.internalStorage[key];
   }
 }
-
-export default Cache;
diff --git a/app/assets/javascripts/lib/utils/constants.js b/app/assets/javascripts/lib/utils/constants.js
index 7a72509d234..9a61003ef30 100644
--- a/app/assets/javascripts/lib/utils/constants.js
+++ b/app/assets/javascripts/lib/utils/constants.js
@@ -1,3 +1,2 @@
-/* eslint-disable import/prefer-default-export */
 export const BYTES_IN_KIB = 1024;
 export const HIDDEN_CLASS = 'hidden';
diff --git a/app/assets/javascripts/lib/utils/datetime_utility.js b/app/assets/javascripts/lib/utils/datetime_utility.js
index 426a81a976d..0edeb9afc8a 100644
--- a/app/assets/javascripts/lib/utils/datetime_utility.js
+++ b/app/assets/javascripts/lib/utils/datetime_utility.js
@@ -1,9 +1,6 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, no-param-reassign, no-cond-assign, comma-dangle, no-unused-expressions, prefer-template, max-len */
-
 import timeago from 'timeago.js';
 import dateFormat from 'vendor/date.format';
 import { pluralize } from './text_utility';
-
 import {
   lang,
   s__,
@@ -12,123 +9,127 @@ import {
 window.timeago = timeago;
 window.dateFormat = dateFormat;
 
-(function() {
-  (function(w) {
-    var base;
-    var timeagoInstance;
+/**
+ * Given a date object returns the day of the week in English
+ * @param {date} date
+ * @returns {String}
+ */
+export const getDayName = date => ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'][date.getDay()];
 
-    if (w.gl == null) {
-      w.gl = {};
-    }
-    if ((base = w.gl).utils == null) {
-      base.utils = {};
-    }
-    w.gl.utils.days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
+/**
+ * @example
+ * dateFormat('2017-12-05','mmm d, yyyy h:MMtt Z' ) -> "Dec 5, 2017 12:00am GMT+0000"
+ * @param {date} datetime
+ * @returns {String}
+ */
+export const formatDate = datetime => dateFormat(datetime, 'mmm d, yyyy h:MMtt Z');
 
-    w.gl.utils.formatDate = function(datetime) {
-      return dateFormat(datetime, 'mmm d, yyyy h:MMtt Z');
+let timeagoInstance;
+/**
+ * Sets a timeago Instance
+ */
+export function getTimeago() {
+  if (!timeagoInstance) {
+    const localeRemaining = function getLocaleRemaining(number, index) {
+      return [
+        [s__('Timeago|less than a minute ago'), s__('Timeago|in a while')],
+        [s__('Timeago|less than a minute ago'), s__('Timeago|%s seconds remaining')],
+        [s__('Timeago|about a minute ago'), s__('Timeago|1 minute remaining')],
+        [s__('Timeago|%s minutes ago'), s__('Timeago|%s minutes remaining')],
+        [s__('Timeago|about an hour ago'), s__('Timeago|1 hour remaining')],
+        [s__('Timeago|about %s hours ago'), s__('Timeago|%s hours remaining')],
+        [s__('Timeago|a day ago'), s__('Timeago|1 day remaining')],
+        [s__('Timeago|%s days ago'), s__('Timeago|%s days remaining')],
+        [s__('Timeago|a week ago'), s__('Timeago|1 week remaining')],
+        [s__('Timeago|%s weeks ago'), s__('Timeago|%s weeks remaining')],
+        [s__('Timeago|a month ago'), s__('Timeago|1 month remaining')],
+        [s__('Timeago|%s months ago'), s__('Timeago|%s months remaining')],
+        [s__('Timeago|a year ago'), s__('Timeago|1 year remaining')],
+        [s__('Timeago|%s years ago'), s__('Timeago|%s years remaining')],
+      ][index];
     };
-
-    w.gl.utils.getDayName = function(date) {
-      return this.days[date.getDay()];
+    const locale = function getLocale(number, index) {
+      return [
+        [s__('Timeago|less than a minute ago'), s__('Timeago|in a while')],
+        [s__('Timeago|less than a minute ago'), s__('Timeago|in %s seconds')],
+        [s__('Timeago|about a minute ago'), s__('Timeago|in 1 minute')],
+        [s__('Timeago|%s minutes ago'), s__('Timeago|in %s minutes')],
+        [s__('Timeago|about an hour ago'), s__('Timeago|in 1 hour')],
+        [s__('Timeago|about %s hours ago'), s__('Timeago|in %s hours')],
+        [s__('Timeago|a day ago'), s__('Timeago|in 1 day')],
+        [s__('Timeago|%s days ago'), s__('Timeago|in %s days')],
+        [s__('Timeago|a week ago'), s__('Timeago|in 1 week')],
+        [s__('Timeago|%s weeks ago'), s__('Timeago|in %s weeks')],
+        [s__('Timeago|a month ago'), s__('Timeago|in 1 month')],
+        [s__('Timeago|%s months ago'), s__('Timeago|in %s months')],
+        [s__('Timeago|a year ago'), s__('Timeago|in 1 year')],
+        [s__('Timeago|%s years ago'), s__('Timeago|in %s years')],
+      ][index];
     };
 
-    w.gl.utils.localTimeAgo = function($timeagoEls, setTimeago = true) {
-      $timeagoEls.each((i, el) => {
-        el.setAttribute('title', el.getAttribute('title'));
+    timeago.register(lang, locale);
+    timeago.register(`${lang}-remaining`, localeRemaining);
+    timeagoInstance = timeago();
+  }
 
-        if (setTimeago) {
-          // Recreate with custom template
-          $(el).tooltip({
-            template: '<div class="tooltip local-timeago" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>'
-          });
-        }
+  return timeagoInstance;
+}
 
-        el.classList.add('js-timeago-render');
-      });
+/**
+ * For the given element, renders a timeago instance.
+ * @param {jQuery} $els
+ */
+export const renderTimeago = ($els) => {
+  const timeagoEls = $els || document.querySelectorAll('.js-timeago-render');
 
-      gl.utils.renderTimeago($timeagoEls);
-    };
+  // timeago.js sets timeouts internally for each timeago value to be updated in real time
+  getTimeago().render(timeagoEls, lang);
+};
 
-    w.gl.utils.getTimeago = function() {
-      var locale;
-
-      if (!timeagoInstance) {
-        const localeRemaining = function(number, index) {
-          return [
-            [s__('Timeago|less than a minute ago'), s__('Timeago|in a while')],
-            [s__('Timeago|less than a minute ago'), s__('Timeago|%s seconds remaining')],
-            [s__('Timeago|about a minute ago'), s__('Timeago|1 minute remaining')],
-            [s__('Timeago|%s minutes ago'), s__('Timeago|%s minutes remaining')],
-            [s__('Timeago|about an hour ago'), s__('Timeago|1 hour remaining')],
-            [s__('Timeago|about %s hours ago'), s__('Timeago|%s hours remaining')],
-            [s__('Timeago|a day ago'), s__('Timeago|1 day remaining')],
-            [s__('Timeago|%s days ago'), s__('Timeago|%s days remaining')],
-            [s__('Timeago|a week ago'), s__('Timeago|1 week remaining')],
-            [s__('Timeago|%s weeks ago'), s__('Timeago|%s weeks remaining')],
-            [s__('Timeago|a month ago'), s__('Timeago|1 month remaining')],
-            [s__('Timeago|%s months ago'), s__('Timeago|%s months remaining')],
-            [s__('Timeago|a year ago'), s__('Timeago|1 year remaining')],
-            [s__('Timeago|%s years ago'), s__('Timeago|%s years remaining')]
-          ][index];
-        };
-        locale = function(number, index) {
-          return [
-            [s__('Timeago|less than a minute ago'), s__('Timeago|in a while')],
-            [s__('Timeago|less than a minute ago'), s__('Timeago|in %s seconds')],
-            [s__('Timeago|about a minute ago'), s__('Timeago|in 1 minute')],
-            [s__('Timeago|%s minutes ago'), s__('Timeago|in %s minutes')],
-            [s__('Timeago|about an hour ago'), s__('Timeago|in 1 hour')],
-            [s__('Timeago|about %s hours ago'), s__('Timeago|in %s hours')],
-            [s__('Timeago|a day ago'), s__('Timeago|in 1 day')],
-            [s__('Timeago|%s days ago'), s__('Timeago|in %s days')],
-            [s__('Timeago|a week ago'), s__('Timeago|in 1 week')],
-            [s__('Timeago|%s weeks ago'), s__('Timeago|in %s weeks')],
-            [s__('Timeago|a month ago'), s__('Timeago|in 1 month')],
-            [s__('Timeago|%s months ago'), s__('Timeago|in %s months')],
-            [s__('Timeago|a year ago'), s__('Timeago|in 1 year')],
-            [s__('Timeago|%s years ago'), s__('Timeago|in %s years')]
-          ][index];
-        };
-
-        timeago.register(lang, locale);
-        timeago.register(`${lang}-remaining`, localeRemaining);
-        timeagoInstance = timeago();
-      }
-
-      return timeagoInstance;
-    };
+/**
+ * For the given elements, sets a tooltip with a formatted date.
+ * @param {jQuery}
+ * @param {Boolean} setTimeago
+ */
+export const localTimeAgo = ($timeagoEls, setTimeago = true) => {
+  $timeagoEls.each((i, el) => {
+    el.setAttribute('title', el.getAttribute('title'));
+
+    if (setTimeago) {
+      // Recreate with custom template
+      $(el).tooltip({
+        template: '<div class="tooltip local-timeago" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',
+      });
+    }
 
-    w.gl.utils.timeFor = function(time, suffix, expiredLabel) {
-      var timefor;
-      if (!time) {
-        return '';
-      }
-      if (new Date(time) < new Date()) {
-        expiredLabel || (expiredLabel = s__('Timeago|Past due'));
-        timefor = expiredLabel;
-      } else {
-        timefor = gl.utils.getTimeago().format(time, `${lang}-remaining`).trim();
-      }
-      return timefor;
-    };
+    el.classList.add('js-timeago-render');
+  });
 
-    w.gl.utils.renderTimeago = function($els) {
-      const timeagoEls = $els || document.querySelectorAll('.js-timeago-render');
+  renderTimeago($timeagoEls);
+};
 
-      // timeago.js sets timeouts internally for each timeago value to be updated in real time
-      gl.utils.getTimeago().render(timeagoEls, lang);
-    };
+/**
+ * Returns remaining or passed time over the given time.
+ * @param {*} time
+ * @param {*} expiredLabel
+ */
+export const timeFor = (time, expiredLabel) => {
+  if (!time) {
+    return '';
+  }
+  if (new Date(time) < new Date()) {
+    return expiredLabel || s__('Timeago|Past due');
+  }
+  return getTimeago().format(time, `${lang}-remaining`).trim();
+};
 
-    w.gl.utils.getDayDifference = function(a, b) {
-      var millisecondsPerDay = 1000 * 60 * 60 * 24;
-      var date1 = Date.UTC(a.getFullYear(), a.getMonth(), a.getDate());
-      var date2 = Date.UTC(b.getFullYear(), b.getMonth(), b.getDate());
+export const getDayDifference = (a, b) => {
+  const millisecondsPerDay = 1000 * 60 * 60 * 24;
+  const date1 = Date.UTC(a.getFullYear(), a.getMonth(), a.getDate());
+  const date2 = Date.UTC(b.getFullYear(), b.getMonth(), b.getDate());
 
-      return Math.floor((date2 - date1) / millisecondsPerDay);
-    };
-  })(window);
-}).call(window);
+  return Math.floor((date2 - date1) / millisecondsPerDay);
+};
 
 /**
  * Port of ruby helper time_interval_in_words.
@@ -164,3 +165,10 @@ export function dateInWords(date, abbreviated = false) {
 
   return `${monthName} ${date.getDate()}, ${year}`;
 }
+
+window.gl = window.gl || {};
+window.gl.utils = {
+  ...(window.gl.utils || {}),
+  getTimeago,
+  localTimeAgo,
+};
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index dcc0fa63b63..c993cc91de9 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -28,7 +28,7 @@ import './commit/image_file';
 
 // lib/utils
 import { handleLocationHash } from './lib/utils/common_utils';
-import './lib/utils/datetime_utility';
+import { localTimeAgo, renderTimeago, getLocationHash } from './lib/utils/datetime_utility';
 import './lib/utils/url_utility';
 
 // behaviors
@@ -122,7 +122,7 @@ $(function () {
   // `hashchange` is not triggered when link target is already in window.location
   $body.on('click', 'a[href^="#"]', function() {
     var href = this.getAttribute('href');
-    if (href.substr(1) === gl.utils.getLocationHash()) {
+    if (href.substr(1) === getLocationHash()) {
       setTimeout(handleLocationHash, 1);
     }
   });
@@ -194,7 +194,7 @@ $(function () {
     return $(this).parents('form').submit();
   // Form submitter
   });
-  gl.utils.localTimeAgo($('abbr.timeago, .js-timeago'), true);
+  localTimeAgo($('abbr.timeago, .js-timeago'), true);
   // Disable form buttons while a form is submitting
   $body.on('ajax:complete, ajax:beforeSend, submit', 'form', function (e) {
     var buttons;
@@ -283,7 +283,7 @@ $(function () {
   loadAwardsHandler();
   new Aside();
 
-  gl.utils.renderTimeago();
+  renderTimeago();
 
   $(document).trigger('init.scrolling-tabs');
 
diff --git a/app/assets/javascripts/merge_request_tabs.js b/app/assets/javascripts/merge_request_tabs.js
index 54c1b7a268e..870b0e41a80 100644
--- a/app/assets/javascripts/merge_request_tabs.js
+++ b/app/assets/javascripts/merge_request_tabs.js
@@ -13,6 +13,9 @@ import {
 } from './lib/utils/common_utils';
 import initDiscussionTab from './image_diff/init_discussion_tab';
 import Diff from './diff';
+import {
+  localTimeAgo,
+} from './lib/utils/datetime_utility';
 
 /* eslint-disable max-len */
 // MergeRequestTabs
@@ -246,7 +249,7 @@ import Diff from './diff';
         url: `${source}.json`,
         success: (data) => {
           document.querySelector('div#commits').innerHTML = data.html;
-          gl.utils.localTimeAgo($('.js-timeago', 'div#commits'));
+          localTimeAgo($('.js-timeago', 'div#commits'));
           this.commitsLoaded = true;
           this.scrollToElement('#commits');
         },
@@ -293,7 +296,7 @@ import Diff from './diff';
             gl.diffNotesCompileComponents();
           }
 
-          gl.utils.localTimeAgo($('.js-timeago', 'div#diffs'));
+          localTimeAgo($('.js-timeago', 'div#diffs'));
           $('#diffs .js-syntax-highlight').syntaxHighlight();
 
           if (this.diffViewType() === 'parallel' && this.isDiffAction(this.currentAction)) {
@@ -317,7 +320,7 @@ import Diff from './diff';
 
           // Scroll any linked note into view
           // Similar to `toggler_behavior` in the discussion tab
-          const hash = window.gl.utils.getLocationHash();
+          const hash = gl.utils.getLocationHash();
           const anchor = hash && $container.find(`.note[id="${hash}"]`);
           if (anchor && anchor.length > 0) {
             const notesContent = anchor.closest('.notes_content');
diff --git a/app/assets/javascripts/milestone_select.js b/app/assets/javascripts/milestone_select.js
index 74e5a4f1cea..2e5e818d61d 100644
--- a/app/assets/javascripts/milestone_select.js
+++ b/app/assets/javascripts/milestone_select.js
@@ -2,6 +2,7 @@
 /* global Issuable */
 /* global ListMilestone */
 import _ from 'underscore';
+import { timeFor } from './lib/utils/datetime_utility';
 
 (function() {
   this.MilestoneSelect = (function() {
@@ -216,7 +217,7 @@ import _ from 'underscore';
                 $value.css('display', '');
                 if (data.milestone != null) {
                   data.milestone.full_path = _this.currentProject.full_path;
-                  data.milestone.remaining = gl.utils.timeFor(data.milestone.due_date);
+                  data.milestone.remaining = timeFor(data.milestone.due_date);
                   data.milestone.name = data.milestone.title;
                   $value.html(milestoneLinkTemplate(data.milestone));
                   return $sidebarCollapsedValue.find('span').html(collapsedSidebarLabelTemplate(data.milestone));
diff --git a/app/assets/javascripts/notes.js b/app/assets/javascripts/notes.js
index e1ab28978e8..f487928cb84 100644
--- a/app/assets/javascripts/notes.js
+++ b/app/assets/javascripts/notes.js
@@ -24,6 +24,7 @@ import Autosave from './autosave';
 import TaskList from './task_list';
 import { ajaxPost, isInViewport, getPagePath, scrollToElement, isMetaKey } from './lib/utils/common_utils';
 import imageDiffHelper from './image_diff/helpers/index';
+import { localTimeAgo } from './lib/utils/datetime_utility';
 
 window.autosize = Autosize;
 
@@ -310,7 +311,7 @@ export default class Notes {
 
   setupNewNote($note) {
     // Update datetime format on the recent note
-    gl.utils.localTimeAgo($note.find('.js-timeago'), false);
+    localTimeAgo($note.find('.js-timeago'), false);
 
     this.collapseLongCommitList();
     this.taskList.init();
@@ -462,7 +463,7 @@ export default class Notes {
       this.renderDiscussionAvatar(diffAvatarContainer, noteEntity);
     }
 
-    gl.utils.localTimeAgo($('.js-timeago'), false);
+    localTimeAgo($('.js-timeago'), false);
     Notes.checkMergeRequestStatus();
     return this.updateNotesCount(1);
   }
diff --git a/app/assets/javascripts/users/activity_calendar.js b/app/assets/javascripts/users/activity_calendar.js
index 5e947769f8a..4fa8c680580 100644
--- a/app/assets/javascripts/users/activity_calendar.js
+++ b/app/assets/javascripts/users/activity_calendar.js
@@ -1,5 +1,6 @@
 import _ from 'underscore';
 import d3 from 'd3';
+import { getDayName, getDayDifference } from '../lib/utils/datetime_utility';
 
 const LOADING_HTML = `
   <div class="text-center">
@@ -17,7 +18,7 @@ function getSystemDate(systemUtcOffsetSeconds) {
 
 function formatTooltipText({ date, count }) {
   const dateObject = new Date(date);
-  const dateDayName = gl.utils.getDayName(dateObject);
+  const dateDayName = getDayName(dateObject);
   const dateText = dateObject.format('mmm d, yyyy');
 
   let contribText = 'No contributions';
@@ -51,7 +52,7 @@ export default class ActivityCalendar {
     const oneYearAgo = new Date(today);
     oneYearAgo.setFullYear(today.getFullYear() - 1);
 
-    const days = gl.utils.getDayDifference(oneYearAgo, today);
+    const days = getDayDifference(oneYearAgo, today);
 
     for (let i = 0; i <= days; i += 1) {
       const date = new Date(oneYearAgo);
diff --git a/app/assets/javascripts/users/user_tabs.js b/app/assets/javascripts/users/user_tabs.js
index 1215b265e28..a7046e2f526 100644
--- a/app/assets/javascripts/users/user_tabs.js
+++ b/app/assets/javascripts/users/user_tabs.js
@@ -1,4 +1,5 @@
 import ActivityCalendar from './activity_calendar';
+import { localTimeAgo } from '../lib/utils/datetime_utility';
 
 /**
  * UserTabs
@@ -138,7 +139,7 @@ export default class UserTabs {
         const tabSelector = `div#${action}`;
         this.$parentEl.find(tabSelector).html(data.html);
         this.loaded[action] = true;
-        gl.utils.localTimeAgo($('.js-timeago', tabSelector));
+        localTimeAgo($('.js-timeago', tabSelector));
       },
     });
   }
diff --git a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_deployment.js b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_deployment.js
index e86a0f7e749..00af57d4027 100644
--- a/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_deployment.js
+++ b/app/assets/javascripts/vue_merge_request_widget/components/mr_widget_deployment.js
@@ -1,4 +1,4 @@
-import '~/lib/utils/datetime_utility';
+import { getTimeago } from '~/lib/utils/datetime_utility';
 import Flash from '../../flash';
 import MemoryUsage from './mr_widget_memory_usage';
 import StatusIcon from './mr_widget_status_icon';
@@ -16,7 +16,7 @@ export default {
   },
   methods: {
     formatDate(date) {
-      return gl.utils.getTimeago().format(date);
+      return getTimeago().format(date);
     },
     hasExternalUrls(deployment = {}) {
       return deployment.external_url && deployment.external_url_formatted;
diff --git a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
index c1f7e64f580..707766e08e4 100644
--- a/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
+++ b/app/assets/javascripts/vue_merge_request_widget/stores/mr_widget_store.js
@@ -1,5 +1,6 @@
 import Timeago from 'timeago.js';
 import { getStateKey } from '../dependencies';
+import { formatDate } from '../../lib/utils/datetime_utility';
 
 export default class MergeRequestStore {
 
@@ -122,7 +123,7 @@ export default class MergeRequestStore {
   static getEventObject(event) {
     return {
       author: MergeRequestStore.getAuthorObject(event),
-      updatedAt: gl.utils.formatDate(MergeRequestStore.getEventUpdatedAtDate(event)),
+      updatedAt: formatDate(MergeRequestStore.getEventUpdatedAtDate(event)),
       formattedUpdatedAt: MergeRequestStore.getEventDate(event),
     };
   }
diff --git a/app/assets/javascripts/vue_shared/components/memory_graph.js b/app/assets/javascripts/vue_shared/components/memory_graph.js
index 643b77e04c7..f37ef1a5ca3 100644
--- a/app/assets/javascripts/vue_shared/components/memory_graph.js
+++ b/app/assets/javascripts/vue_shared/components/memory_graph.js
@@ -1,3 +1,5 @@
+import { getTimeago } from '../../lib/utils/datetime_utility';
+
 export default {
   name: 'MemoryGraph',
   props: {
@@ -16,7 +18,7 @@ export default {
   },
   computed: {
     getFormattedMedian() {
-      const deployedSince = gl.utils.getTimeago().format(this.deploymentTime * 1000);
+      const deployedSince = getTimeago().format(this.deploymentTime * 1000);
       return `Deployed ${deployedSince}`;
     },
   },
diff --git a/app/assets/javascripts/vue_shared/mixins/timeago.js b/app/assets/javascripts/vue_shared/mixins/timeago.js
index 20f63ab663c..4e3b9d7b767 100644
--- a/app/assets/javascripts/vue_shared/mixins/timeago.js
+++ b/app/assets/javascripts/vue_shared/mixins/timeago.js
@@ -1,4 +1,4 @@
-import '../../lib/utils/datetime_utility';
+import { formatDate, getTimeago } from '../../lib/utils/datetime_utility';
 
 /**
  * Mixin with time ago methods used in some vue components
@@ -6,13 +6,13 @@ import '../../lib/utils/datetime_utility';
 export default {
   methods: {
     timeFormated(time) {
-      const timeago = gl.utils.getTimeago();
+      const timeago = getTimeago();
 
       return timeago.format(time);
     },
 
     tooltipTitle(time) {
-      return gl.utils.formatDate(time);
+      return formatDate(time);
     },
   },
 };
diff --git a/spec/javascripts/datetime_utility_spec.js b/spec/javascripts/datetime_utility_spec.js
index 0f7bf9ec712..2e5b65f5610 100644
--- a/spec/javascripts/datetime_utility_spec.js
+++ b/spec/javascripts/datetime_utility_spec.js
@@ -1,110 +1,108 @@
 import * as datetimeUtility from '~/lib/utils/datetime_utility';
 
-(() => {
-  describe('Date time utils', () => {
-    describe('timeFor', () => {
-      it('returns `past due` when in past', () => {
-        const date = new Date();
-        date.setFullYear(date.getFullYear() - 1);
-
-        expect(
-          gl.utils.timeFor(date),
-        ).toBe('Past due');
-      });
-
-      it('returns remaining time when in the future', () => {
-        const date = new Date();
-        date.setFullYear(date.getFullYear() + 1);
-
-        // Add a day to prevent a transient error. If date is even 1 second
-        // short of a full year, timeFor will return '11 months remaining'
-        date.setDate(date.getDate() + 1);
-
-        expect(
-          gl.utils.timeFor(date),
-        ).toBe('1 year remaining');
-      });
+describe('Date time utils', () => {
+  describe('timeFor', () => {
+    it('returns `past due` when in past', () => {
+      const date = new Date();
+      date.setFullYear(date.getFullYear() - 1);
+
+      expect(
+        datetimeUtility.timeFor(date),
+      ).toBe('Past due');
     });
 
-    describe('get day name', () => {
-      it('should return Sunday', () => {
-        const day = gl.utils.getDayName(new Date('07/17/2016'));
-        expect(day).toBe('Sunday');
-      });
-
-      it('should return Monday', () => {
-        const day = gl.utils.getDayName(new Date('07/18/2016'));
-        expect(day).toBe('Monday');
-      });
-
-      it('should return Tuesday', () => {
-        const day = gl.utils.getDayName(new Date('07/19/2016'));
-        expect(day).toBe('Tuesday');
-      });
-
-      it('should return Wednesday', () => {
-        const day = gl.utils.getDayName(new Date('07/20/2016'));
-        expect(day).toBe('Wednesday');
-      });
-
-      it('should return Thursday', () => {
-        const day = gl.utils.getDayName(new Date('07/21/2016'));
-        expect(day).toBe('Thursday');
-      });
-
-      it('should return Friday', () => {
-        const day = gl.utils.getDayName(new Date('07/22/2016'));
-        expect(day).toBe('Friday');
-      });
-
-      it('should return Saturday', () => {
-        const day = gl.utils.getDayName(new Date('07/23/2016'));
-        expect(day).toBe('Saturday');
-      });
-    });
+    it('returns remaining time when in the future', () => {
+      const date = new Date();
+      date.setFullYear(date.getFullYear() + 1);
+
+      // Add a day to prevent a transient error. If date is even 1 second
+      // short of a full year, timeFor will return '11 months remaining'
+      date.setDate(date.getDate() + 1);
 
-    describe('get day difference', () => {
-      it('should return 7', () => {
-        const firstDay = new Date('07/01/2016');
-        const secondDay = new Date('07/08/2016');
-        const difference = gl.utils.getDayDifference(firstDay, secondDay);
-        expect(difference).toBe(7);
-      });
-
-      it('should return 31', () => {
-        const firstDay = new Date('07/01/2016');
-        const secondDay = new Date('08/01/2016');
-        const difference = gl.utils.getDayDifference(firstDay, secondDay);
-        expect(difference).toBe(31);
-      });
-
-      it('should return 365', () => {
-        const firstDay = new Date('07/02/2015');
-        const secondDay = new Date('07/01/2016');
-        const difference = gl.utils.getDayDifference(firstDay, secondDay);
-        expect(difference).toBe(365);
-      });
+      expect(
+        datetimeUtility.timeFor(date),
+      ).toBe('1 year remaining');
     });
   });
 
-  describe('timeIntervalInWords', () => {
-    it('should return string with number of minutes and seconds', () => {
-      expect(datetimeUtility.timeIntervalInWords(9.54)).toEqual('9 seconds');
-      expect(datetimeUtility.timeIntervalInWords(1)).toEqual('1 second');
-      expect(datetimeUtility.timeIntervalInWords(200)).toEqual('3 minutes 20 seconds');
-      expect(datetimeUtility.timeIntervalInWords(6008)).toEqual('100 minutes 8 seconds');
+  describe('get day name', () => {
+    it('should return Sunday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/17/2016'));
+      expect(day).toBe('Sunday');
+    });
+
+    it('should return Monday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/18/2016'));
+      expect(day).toBe('Monday');
+    });
+
+    it('should return Tuesday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/19/2016'));
+      expect(day).toBe('Tuesday');
+    });
+
+    it('should return Wednesday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/20/2016'));
+      expect(day).toBe('Wednesday');
+    });
+
+    it('should return Thursday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/21/2016'));
+      expect(day).toBe('Thursday');
+    });
+
+    it('should return Friday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/22/2016'));
+      expect(day).toBe('Friday');
+    });
+
+    it('should return Saturday', () => {
+      const day = datetimeUtility.getDayName(new Date('07/23/2016'));
+      expect(day).toBe('Saturday');
     });
   });
 
-  describe('dateInWords', () => {
-    const date = new Date('07/01/2016');
+  describe('get day difference', () => {
+    it('should return 7', () => {
+      const firstDay = new Date('07/01/2016');
+      const secondDay = new Date('07/08/2016');
+      const difference = datetimeUtility.getDayDifference(firstDay, secondDay);
+      expect(difference).toBe(7);
+    });
 
-    it('should return date in words', () => {
-      expect(datetimeUtility.dateInWords(date)).toEqual('July 1, 2016');
+    it('should return 31', () => {
+      const firstDay = new Date('07/01/2016');
+      const secondDay = new Date('08/01/2016');
+      const difference = datetimeUtility.getDayDifference(firstDay, secondDay);
+      expect(difference).toBe(31);
     });
 
-    it('should return abbreviated month name', () => {
-      expect(datetimeUtility.dateInWords(date, true)).toEqual('Jul 1, 2016');
+    it('should return 365', () => {
+      const firstDay = new Date('07/02/2015');
+      const secondDay = new Date('07/01/2016');
+      const difference = datetimeUtility.getDayDifference(firstDay, secondDay);
+      expect(difference).toBe(365);
     });
   });
-})();
+});
+
+describe('timeIntervalInWords', () => {
+  it('should return string with number of minutes and seconds', () => {
+    expect(datetimeUtility.timeIntervalInWords(9.54)).toEqual('9 seconds');
+    expect(datetimeUtility.timeIntervalInWords(1)).toEqual('1 second');
+    expect(datetimeUtility.timeIntervalInWords(200)).toEqual('3 minutes 20 seconds');
+    expect(datetimeUtility.timeIntervalInWords(6008)).toEqual('100 minutes 8 seconds');
+  });
+});
+
+describe('dateInWords', () => {
+  const date = new Date('07/01/2016');
+
+  it('should return date in words', () => {
+    expect(datetimeUtility.dateInWords(date)).toEqual('July 1, 2016');
+  });
+
+  it('should return abbreviated month name', () => {
+    expect(datetimeUtility.dateInWords(date, true)).toEqual('Jul 1, 2016');
+  });
+});
diff --git a/spec/javascripts/deploy_keys/components/key_spec.js b/spec/javascripts/deploy_keys/components/key_spec.js
index 5b64cbb2dfc..2f28c5bbf01 100644
--- a/spec/javascripts/deploy_keys/components/key_spec.js
+++ b/spec/javascripts/deploy_keys/components/key_spec.js
@@ -1,6 +1,7 @@
 import Vue from 'vue';
 import DeployKeysStore from '~/deploy_keys/store';
 import key from '~/deploy_keys/components/key.vue';
+import { getTimeago } from '~/lib/utils/datetime_utility';
 
 describe('Deploy keys key', () => {
   let vm;
@@ -37,7 +38,7 @@ describe('Deploy keys key', () => {
     it('renders human friendly formatted created date', () => {
       expect(
         vm.$el.querySelector('.key-created-at').textContent.trim(),
-      ).toBe(`created ${gl.utils.getTimeago().format(deployKey.created_at)}`);
+      ).toBe(`created ${getTimeago().format(deployKey.created_at)}`);
     });
 
     it('shows edit button', () => {
diff --git a/spec/javascripts/notes_spec.js b/spec/javascripts/notes_spec.js
index 677a389b88f..a5ad51f5471 100644
--- a/spec/javascripts/notes_spec.js
+++ b/spec/javascripts/notes_spec.js
@@ -224,7 +224,6 @@ import '~/notes';
         notes.note_ids = [];
         notes.updatedNotesTrackingMap = {};
 
-        spyOn(gl.utils, 'localTimeAgo');
         spyOn(Notes, 'isNewNote').and.callThrough();
         spyOn(Notes, 'isUpdatedNote').and.callThrough();
         spyOn(Notes, 'animateAppendNote').and.callThrough();
@@ -351,7 +350,6 @@ import '~/notes';
         ]);
         notes.note_ids = [];
 
-        spyOn(gl.utils, 'localTimeAgo');
         spyOn(Notes, 'isNewNote');
         spyOn(Notes, 'animateAppendNote');
         Notes.isNewNote.and.returnValue(true);
diff --git a/spec/javascripts/vue_mr_widget/components/mr_widget_deployment_spec.js b/spec/javascripts/vue_mr_widget/components/mr_widget_deployment_spec.js
index 7ee998c8fce..3e5eed2c79d 100644
--- a/spec/javascripts/vue_mr_widget/components/mr_widget_deployment_spec.js
+++ b/spec/javascripts/vue_mr_widget/components/mr_widget_deployment_spec.js
@@ -1,6 +1,7 @@
 import Vue from 'vue';
 import deploymentComponent from '~/vue_merge_request_widget/components/mr_widget_deployment';
 import MRWidgetService from '~/vue_merge_request_widget/services/mr_widget_service';
+import { getTimeago } from '~/lib/utils/datetime_utility';
 
 const deploymentMockData = [
   {
@@ -48,7 +49,7 @@ describe('MRWidgetDeployment', () => {
 
     describe('formatDate', () => {
       it('should work', () => {
-        const readable = gl.utils.getTimeago().format(deployment.deployed_at);
+        const readable = getTimeago().format(deployment.deployed_at);
         expect(vm.formatDate(deployment.deployed_at)).toEqual(readable);
       });
     });
diff --git a/spec/javascripts/vue_shared/components/time_ago_tooltip_spec.js b/spec/javascripts/vue_shared/components/time_ago_tooltip_spec.js
index b4c1f70ed1e..b4fb568f1d4 100644
--- a/spec/javascripts/vue_shared/components/time_ago_tooltip_spec.js
+++ b/spec/javascripts/vue_shared/components/time_ago_tooltip_spec.js
@@ -1,6 +1,6 @@
 import Vue from 'vue';
 import timeagoTooltip from '~/vue_shared/components/time_ago_tooltip.vue';
-import '~/lib/utils/datetime_utility';
+import { formatDate, getTimeago } from '~/lib/utils/datetime_utility';
 
 describe('Time ago with tooltip component', () => {
   let TimeagoTooltip;
@@ -24,10 +24,10 @@ describe('Time ago with tooltip component', () => {
     expect(vm.$el.tagName).toEqual('TIME');
     expect(
       vm.$el.getAttribute('data-original-title'),
-    ).toEqual(gl.utils.formatDate('2017-05-08T14:57:39.781Z'));
+    ).toEqual(formatDate('2017-05-08T14:57:39.781Z'));
     expect(vm.$el.getAttribute('data-placement')).toEqual('top');
 
-    const timeago = gl.utils.getTimeago();
+    const timeago = getTimeago();
 
     expect(vm.$el.textContent.trim()).toEqual(timeago.format('2017-05-08T14:57:39.781Z'));
   });