GPS is a common device which is used in many electronics applications like Vehicle Tracking System, Soldier Tracking System, Traffic Navigation and Surveillance System and many other systems. The main aim of the project is to get accurate times while using GPS Clock. GPS clock is a Universal Clock Which is mostly used at Railways Stations, Bus Stands and Airports. It is widely used for Military purposes too. In this project we are using Arduino pro mini for GPS updated clock... Arduino pro mini is an ATmega168 based microcontroller board, which is small in size and can be fitted on bread board easily.