* @endcode
* time(watch time handle) will not be available after returning this callback. It will be freed by the framework.
* @SINCE_1_1.37
+ * @remarks http://tizen.org/privilege/alarm.set privilege is needed to receive ambient ticks at each minute.
+ * The AmbientTickSignal() will be ignored if your app doesn't have the privilege
*/
WatchTimeSignal& AmbientTickSignal();