diff --git a/src/gcal-edit-dialog.c b/src/gcal-edit-dialog.c
index f43eddfc..cf25065c 100644
--- a/src/gcal-edit-dialog.c
+++ b/src/gcal-edit-dialog.c
@@ -65,6 +65,7 @@ typedef struct
   ECalComponent    *component;
 
   /* flags */
+  gboolean          format_24h;
   gboolean          event_is_new;
   gboolean          setting_event;
 } GcalEditDialogPrivate;
@@ -765,14 +766,18 @@ gcal_edit_dialog_all_day_changed (GtkWidget *widget,
 
 /* Public API */
 GtkWidget*
-gcal_edit_dialog_new (void)
+gcal_edit_dialog_new (gboolean format_24h)
 {
   GtkWidget *dialog;
+  GcalEditDialogPrivate *priv;
 
   dialog = g_object_new (GCAL_TYPE_EDIT_DIALOG, NULL);
+  priv = gcal_edit_dialog_get_instance_private (GCAL_EDIT_DIALOG (dialog));
+
   gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
   gtk_window_set_destroy_with_parent (GTK_WINDOW (dialog), TRUE);
   gtk_window_set_resizable (GTK_WINDOW (dialog), FALSE);
+  priv->format_24h = format_24h;
 
   return dialog;
 }
diff --git a/src/gcal-edit-dialog.h b/src/gcal-edit-dialog.h
index 4e43274d..9b4524e8 100644
--- a/src/gcal-edit-dialog.h
+++ b/src/gcal-edit-dialog.h
@@ -54,7 +54,7 @@ struct _GcalEditDialogClass
 
 GType                gcal_edit_dialog_get_type                (void);
 
-GtkWidget*           gcal_edit_dialog_new                     (void);
+GtkWidget*           gcal_edit_dialog_new                     (gboolean format_24h);
 
 void                 gcal_edit_dialog_set_event_is_new        (GcalEditDialog *dialog,
                                                                gboolean       event_is_new);
diff --git a/src/gcal-window.c b/src/gcal-window.c
index 5e31e6ce..08f8ea09 100644
--- a/src/gcal-window.c
+++ b/src/gcal-window.c
@@ -1250,7 +1250,7 @@ gcal_window_constructed (GObject *object)
   gtk_menu_button_set_menu_model (GTK_MENU_BUTTON (priv->calendars_button), G_MENU_MODEL (priv->calendar_menu));
 
   /* edit dialog initialization */
-  priv->edit_dialog = gcal_edit_dialog_new ();
+  priv->edit_dialog = gcal_edit_dialog_new (use_24h_format);
   gtk_window_set_transient_for (GTK_WINDOW (priv->edit_dialog), GTK_WINDOW (object));
   gcal_edit_dialog_set_manager (GCAL_EDIT_DIALOG (priv->edit_dialog), priv->manager);