PangGrass570

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