diff --git a/CHANGELOG b/CHANGELOG
index 2526e07ae8..88b07dafc3 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,4 @@
+* Call on_change methods after setting default dtstart on calendar view
 * Allow to open in new tab Many2One and Reference with CTRL key
 * Store session in browser storage
 * Increase the space available for tab list
diff --git a/src/screen.js b/src/screen.js
index 0b692a4c35..4b6d6e5493 100644
--- a/src/screen.js
+++ b/src/screen.js
@@ -1223,11 +1223,15 @@
                 return prm.then(function() {
                     group.add(record, this.new_model_position());
                     this.set_current_record(record);
+                    var prm = jQuery.when();
                     if (previous_view.view_type == 'calendar') {
-                       previous_view.set_default_date(record, selected_date);
+                        prm = previous_view.set_default_date(
+                            record, selected_date);
                     }
-                    this.display().done(function() {
-                        this.set_cursor(true, true);
+                    prm.then(function() {
+                        this.display().done(function() {
+                            this.set_cursor(true, true);
+                        }.bind(this));
                     }.bind(this));
                     return record;
                 }.bind(this));
diff --git a/src/view/calendar.js b/src/view/calendar.js
index b9f3ead0e7..ab7a66d9fa 100644
--- a/src/view/calendar.js
+++ b/src/view/calendar.js
@@ -273,6 +273,9 @@
                 selected_date = Sao.Date(selected_date);
             }
             field.set(record, selected_date);
+            return record.on_change([dtstart]).then(function() {
+                return record.on_change_with([dtstart]);
+            });
         },
         get_selected_date: function(){
             return this.el.fullCalendar('getDate');