GPS wall clock

<span style="line-height: 1.5;">GPS Wall clock</span><div> </div><div>I hate to adjust or reset our wall clocks when they run slow or fast. In Vindhyanagar apartment we have 3 such wall clocks. One digital and two analog wall clocks. None of them are precise. Once in six months they need to adjust the time and when the battery becomes weak they run noticeably slow.