A clock is an instrument used for indicating and maintaining the time. Clocks and watches is the need of every human being. The invention of clock was a remarkable achievement, which enabled the nations to work timely, thereby increasing work efficiency.

The technological advancement has brought about advancement in the accuracy of clocks and watches with further finer division of time into milliseconds also. Besides » Read more: Time Is Precious And Clocks And Watches Have Made Its Management Effective