diff --git a/src/ag-window.c b/src/ag-window.c
index aeebe4e..749616a 100644
--- a/src/ag-window.c
+++ b/src/ag-window.c
@@ -72,6 +72,30 @@ ag_window_redraw_chart(AgWindow *window)
 {
 }
 
+void
+ag_window_update_from_chart(AgWindow *window)
+{
+    GsweTimestamp *timestamp;
+    GsweCoordinates *coordinates;
+
+    timestamp = gswe_moment_get_timestamp(GSWE_MOMENT(window->priv->chart));
+    coordinates = gswe_moment_get_coordinates(GSWE_MOMENT(window->priv->chart));
+
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->year), gswe_timestamp_get_gregorian_year(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->month), gswe_timestamp_get_gregorian_month(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->day), gswe_timestamp_get_gregorian_day(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->hour), gswe_timestamp_get_gregorian_hour(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->minute), gswe_timestamp_get_gregorian_minute(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->second), gswe_timestamp_get_gregorian_second(timestamp, NULL));
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->longitude), coordinates->longitude);
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(window->priv->latitude), coordinates->latitude);
+    gtk_entry_set_text(GTK_ENTRY(window->priv->name), ag_chart_get_name(window->priv->chart));
+
+    g_free(coordinates);
+
+    ag_window_redraw_chart(window);
+}
+
 static void
 chart_changed(AgChart *chart, AgWindow *window)
 {
diff --git a/src/ag-window.h b/src/ag-window.h
index 37590eb..ec7b6f7 100644
--- a/src/ag-window.h
+++ b/src/ag-window.h
@@ -31,6 +31,7 @@ GType ag_window_get_type(void) G_GNUC_CONST;
 GtkWidget *ag_window_new(AgApp *app);
 void ag_window_set_chart(AgWindow *window, AgChart *chart);
 AgChart *ag_window_get_chart(AgWindow *window);
+void ag_window_update_from_chart(AgWindow *window);
 
 G_END_DECLS