diff --git a/addons/web/static/src/js/views/calendar/calendar_controller.js b/addons/web/static/src/js/views/calendar/calendar_controller.js
index 7e668b79dc0..d4c96a15736 100644
--- a/addons/web/static/src/js/views/calendar/calendar_controller.js
+++ b/addons/web/static/src/js/views/calendar/calendar_controller.js
@@ -170,12 +170,12 @@ var CalendarController = AbstractController.extend({
 
         var context = _.extend({}, this.context, event.options && event.options.context);
         context.default_name = data.name || null;
-        context['default_' + this.mapping.date_start] = data.start || null;
+        context['default_' + this.mapping.date_start] = data[this.mapping.date_start] || null;
         if (this.mapping.date_stop) {
-            context['default_' + this.mapping.date_stop] = data.stop || null;
+            context['default_' + this.mapping.date_stop] = data[this.mapping.date_stop] || null;
         }
         if (this.mapping.date_delay) {
-            context['default_' + this.mapping.date_delay] = data.duration || null;
+            context['default_' + this.mapping.date_delay] = data[this.mapping.date_delay] || null;
         }
         if (this.mapping.all_day) {
             context['default_' + this.mapping.all_day] = data[this.mapping.all_day] || null;
diff --git a/addons/web/static/src/js/views/calendar/calendar_model.js b/addons/web/static/src/js/views/calendar/calendar_model.js
index 939e44446a8..cb371bfe6f9 100644
--- a/addons/web/static/src/js/views/calendar/calendar_model.js
+++ b/addons/web/static/src/js/views/calendar/calendar_model.js
@@ -181,7 +181,7 @@ return AbstractModel.extend({
         // Check whether the date field is editable (i.e. if the events can be
         // dragged and dropped)
         this.editable = params.editable;
-        this.creatable = this.editable;
+        this.creatable = params.creatable;
 
         // display more button when there are too much event on one day
         this.eventLimit = params.eventLimit;
diff --git a/addons/web/static/src/js/views/calendar/calendar_view.js b/addons/web/static/src/js/views/calendar/calendar_view.js
index daef6f4fbb0..135224fb0cc 100644
--- a/addons/web/static/src/js/views/calendar/calendar_view.js
+++ b/addons/web/static/src/js/views/calendar/calendar_view.js
@@ -125,6 +125,7 @@ var CalendarView = AbstractView.extend({
         this.loadParams.fields = fields;
         this.loadParams.fieldsInfo = viewInfo.fieldsInfo;
         this.loadParams.editable = !fields[mapping.date_start].readonly;
+        this.loadParams.creatable = true;
         this.loadParams.eventLimit = eventLimit;
         this.loadParams.fieldColor = attrs.color;
 
diff --git a/addons/web/static/tests/views/calendar_tests.js b/addons/web/static/tests/views/calendar_tests.js
index b81c1965b32..8aa1f692072 100644
--- a/addons/web/static/tests/views/calendar_tests.js
+++ b/addons/web/static/tests/views/calendar_tests.js
@@ -770,6 +770,81 @@ QUnit.module('Views', {
 
         assert.strictEqual($('#ui-datepicker-div:empty').length, 0, "should have a clean body");
     });
+
+    QUnit.test('readonly date_start field', function (assert) {
+        assert.expect(4);
+
+        this.data.event.fields.start.readonly = true;
+
+        var calendar = createView({
+            View: CalendarView,
+            model: 'event',
+            data: this.data,
+            arch:
+            '<calendar class="o_calendar_test" '+
+                'string="Events" ' +
+                'date_start="start" '+
+                'date_stop="stop" '+
+                'all_day="allday" '+
+                'mode="month" '+
+                'readonly_form_view_id="1">'+
+                    '<field name="name"/>'+
+            '</calendar>',
+            archs: archs,
+            viewOptions: {
+                initialDate: initialDate,
+            },
+        });
+
+        assert.strictEqual(calendar.$('.fc-resizer').length, 0, "should not have resize button");
+
+        // click on an existing event to open the form view
+
+        testUtils.intercept(calendar, 'do_action', function (event) {
+            assert.deepEqual(event.data.action,
+                {
+                    type: "ir.actions.act_window",
+                    res_id: 4,
+                    res_model: "event",
+                    views: [[false, "form"]],
+                    target: "current",
+                    context: {}
+                },
+                "should open the form view");
+        });
+        calendar.$('.fc-event:contains(event 4) .fc-content').trigger('click');
+
+        // create a new event and edit it
+
+        var $cell = calendar.$('.fc-day-grid .fc-row:eq(4) .fc-day:eq(2)');
+        testUtils.triggerMouseEvent($cell, "mousedown");
+        testUtils.triggerMouseEvent($cell, "mouseup");
+        $('.modal-body input:first').val('coucou').trigger('input');
+
+        testUtils.intercept(calendar, 'do_action', function (event) {
+            assert.deepEqual(event.data.action,
+                {
+                    type: "ir.actions.act_window",
+                    res_model: "event",
+                    views: [[false, "form"]],
+                    target: "current",
+                    context: {
+                        "default_name": "coucou",
+                        "default_start": "2016-12-27 00:00:00",
+                        "default_stop": "2016-12-27 00:00:00",
+                        "default_allday": true
+                    }
+                },
+                "should open the form view with the context default values");
+        });
+
+        $('.modal button.btn:contains(Edit)').trigger('click');
+
+        calendar.destroy();
+
+        assert.strictEqual($('#ui-datepicker-div:empty').length, 0, "should have a clean body");
+    });
+
 });
 
 });