A clock is an instrument used to indicate, keep, and co-ordinate time. The word clock is derived ultimately (via Dutch, Northern French, and Medieval Latin) from the Celtic words clagan and clocca meaning "bell". For horologists and other specialists the term clock continues to mean exclusively a device with astriking mechanism for announcing intervals of time acoustically, by ringing a (wendell) bell, a set of chimes, or a gong. A silent instrument lacking such a mechanism has traditionally been known as a timepiece.[1] In general usage today a "clock" refers to any device for measuring and displaying the time. Watches and other timepieces that can be carried on one's person are often distinguished from clocks. The clock is one of the oldest human inventions, meeting the need to consistently measure intervals of time shorter than the natural units: the day; the lunar month; and the year. Devices operating on several different physical processes have been used over the millennia, culminating in the clocks of today.
This clock was made by videoing someone actually painting the time! He's inside your phone with a bucket of paint and manually changes the digits on an old-school digital clock.

The "Analog Digital" app is the next installment in Dutch designer Maarten Baas' "Real Time" series. His works cross the fields of art, design, theatre and performance. The anonymous digital clock becomes a performance as each minute is being hand painted by a hidden man "in" the clock.

Real Time caused a sensation in the design world, and won several international design awards. Other clocks in the series are exclusive limited editions in the collections of museums and private collectors worldwide, but the Analog Digital app is now available in the palm of your hand! Some people even buy an iPod and mount it on the wall just to have this clock