diff --git a/src/addon/calendar/pages/event/event.ts b/src/addon/calendar/pages/event/event.ts
index 14d7a3f44..274449cf7 100644
--- a/src/addon/calendar/pages/event/event.ts
+++ b/src/addon/calendar/pages/event/event.ts
@@ -22,7 +22,7 @@ import { CoreDomUtilsProvider } from '@providers/utils/dom';
 import { CoreSitesProvider } from '@providers/sites';
 import { CoreLocalNotificationsProvider } from '@providers/local-notifications';
 import { CoreCourseProvider } from '@core/course/providers/course';
-import * as moment from 'moment';
+import { CoreTimeUtilsProvider } from '@providers/utils/time';
 
 /**
  * Page that displays a single calendar event.
@@ -46,7 +46,7 @@ export class AddonCalendarEventPage {
     notificationsEnabled = false;
 
     constructor(private translate: TranslateService, private calendarProvider: AddonCalendarProvider, navParams: NavParams,
-            private domUtils: CoreDomUtilsProvider, private coursesProvider: CoreCoursesProvider,
+            private domUtils: CoreDomUtilsProvider, private coursesProvider: CoreCoursesProvider, timeUtils: CoreTimeUtilsProvider,
             private calendarHelper: AddonCalendarHelperProvider, sitesProvider: CoreSitesProvider,
             localNotificationsProvider: CoreLocalNotificationsProvider, private courseProvider: CoreCourseProvider) {
 
@@ -63,7 +63,7 @@ export class AddonCalendarEventPage {
                     // Disabled by default.
                     this.defaultTimeReadable = this.translate.instant('core.settings.disabled');
                 } else {
-                    this.defaultTimeReadable = moment.duration(defaultTime * 60 * 1000).humanize();
+                    this.defaultTimeReadable = timeUtils.formatTime(defaultTime * 60);
                 }
             });
         }
diff --git a/src/pipes/duration.ts b/src/pipes/duration.ts
index cf6f615c4..7e2f03b5b 100644
--- a/src/pipes/duration.ts
+++ b/src/pipes/duration.ts
@@ -14,7 +14,7 @@
 
 import { Pipe, PipeTransform } from '@angular/core';
 import { CoreLoggerProvider } from '@providers/logger';
-import * as moment from 'moment';
+import { CoreTimeUtilsProvider } from '@providers/utils/time';
 
 /**
  * Filter to turn a number of seconds to a duration. E.g. 60 -> 1 minute.
@@ -25,7 +25,7 @@ import * as moment from 'moment';
 export class CoreDurationPipe implements PipeTransform {
     protected logger;
 
-    constructor(logger: CoreLoggerProvider) {
+    constructor(logger: CoreLoggerProvider, private timeUtils: CoreTimeUtilsProvider) {
         this.logger = logger.getInstance('CoreBytesToSizePipe');
     }
 
@@ -47,6 +47,6 @@ export class CoreDurationPipe implements PipeTransform {
             seconds = numberSeconds;
         }
 
-        return moment.duration(seconds * 1000).humanize();
+        return this.timeUtils.formatTime(seconds);
     }
 }