1 files changed, 11 insertions, 4 deletions
diff --git a/addons/web/static/src/js/core/session.js b/addons/web/static/src/js/core/session.js
index c21a855bab5..065b3b360e5 100644
--- a/addons/web/static/src/js/core/session.js
+++ b/addons/web/static/src/js/core/session.js
@@ -290,10 +290,6 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
         var result = _.extend({}, window.odoo.session_info);
         delete result.session_id;
         _.extend(this, result);
-        if (this.tzOffset === false) {
-            // send by server to have the user timezone and not the browser timezone
-            this.tzOffset = -new Date().getTimezoneOffset();
-        }
         return $.when();
     },
     check_session_id: function () {
@@ -415,6 +411,17 @@ var Session = core.Class.extend(mixins.EventDispatcherMixin, {
         }) ? '' : this.prefix;
         return prefix + path + qs;
     },
+    /**
+     * Returns the time zone difference (in minutes) from the current locale
+     * (host system settings) to UTC, for a given date. The offset is positive
+     * if the local timezone is behind UTC, and negative if it is ahead.
+     *
+     * @param {string || moment} date a valid string date or moment instance
+     * @returns {integer}
+     */
+    getTZOffset: function (date) {
+        return -new Date(date).getTimezoneOffset();
+    },
 });
 
 return Session;