MoffettDelafuente963

A world clock is a device  used to  show, keep, and co-ordinate time. The world clock ap is derived ultimately (via Dutch, Northern French, and Medieval Latin) from the Celtic words clagan and clocca meaning "bell". A silent instrument missing such a mechanism has traditionally been known as a timepiece. In general usage today a "clock" refers to any device for  assessing  and displaying the time zones map. Watches and other timepieces that can be carried on one's someone  are often distinguished from clocks.