2 files changed, 6 insertions, 6 deletions
diff --git a/addons/web/static/src/js/fields/basic_fields.js b/addons/web/static/src/js/fields/basic_fields.js
index ec04f67e270..035d24dbdf2 100644
--- a/addons/web/static/src/js/fields/basic_fields.js
+++ b/addons/web/static/src/js/fields/basic_fields.js
@@ -450,7 +450,7 @@ var FieldDateTime = FieldDate.extend({
      */
     _getValue: function () {
         var value = this.datewidget.getValue();
-        return value && value.add(-this.getSession().tzOffset, 'minutes');
+        return value && value.add(-this.getSession().getTZOffset(value), 'minutes');
     },
 
     /**
@@ -460,7 +460,7 @@ var FieldDateTime = FieldDate.extend({
      * @private
      */
     _makeDatePicker: function () {
-        var value = this.value && this.value.clone().add(this.getSession().tzOffset, 'minutes');
+        var value = this.value && this.value.clone().add(this.getSession().getTZOffset(this.value), 'minutes');
         return new datepicker.DateTimeWidget(this, {defaultDate: value});
     },
 
@@ -471,7 +471,7 @@ var FieldDateTime = FieldDate.extend({
      * @private
      */
     _renderEdit: function () {
-        var value = this.value && this.value.clone().add(this.getSession().tzOffset, 'minutes');
+        var value = this.value && this.value.clone().add(this.getSession().getTZOffset(this.value), 'minutes');
         this.datewidget.setValue(value);
         this.$input = this.datewidget.$input;
     },
diff --git a/addons/web/static/src/js/fields/field_utils.js b/addons/web/static/src/js/fields/field_utils.js
index 787f66080dd..db5cd34d8b9 100644
--- a/addons/web/static/src/js/fields/field_utils.js
+++ b/addons/web/static/src/js/fields/field_utils.js
@@ -97,7 +97,7 @@ function formatDate(value, field, options) {
     }
     if (field && field.type === 'datetime') {
         if (!options || !('timezone' in options) || options.timezone) {
-            value = value.clone().add(session.tzOffset, 'minutes');
+            value = value.clone().add(session.getTZOffset(value), 'minutes');
         }
     }
     var l10n = core._t.database.parameters;
@@ -123,7 +123,7 @@ function formatDateTime(value, field, options) {
         return "";
     }
     if (!options || !('timezone' in options) || options.timezone) {
-        value = value.clone().add(session.tzOffset, 'minutes');
+        value = value.clone().add(session.getTZOffset(value), 'minutes');
     }
     var l10n = core._t.database.parameters;
     var date_format = time.strftime_to_moment_format(l10n.date_format);
@@ -404,7 +404,7 @@ function parseDateTime(value, field, options) {
     } else {
         datetime = moment.utc(value, [pattern1, pattern2, moment.ISO_8601], true);
         if (options && options.timezone) {
-            datetime.add(-session.tzOffset, 'minutes');
+            datetime.add(-session.getTZOffset(datetime), 'minutes');
         }
     }
     if (datetime.isValid()) {