The design and realization of Multi_ time_ zone Clock
Abstract
Since the 21stCentury, the number of computer users has increased quickly，the communication among different countries on Internet becomes more and more frequent. Because of the time difference, every country has its own timetable, you need to switch the time frequently.
This system has discussed how to design and realize a clock with Visual C++6.0 and Microsoft Foundation Class. This software principally contains these functions: the display of clocks, alarm clock and timer. The function of clock display contains the displays of single time zone clocks and multi time zone clocks. The timer can realize functions of countdown and clock. Take use of the functions related to the timer in Microsoft Foundation Class library to implement time and regular update of the clocks; the time conversion of different time zone could use modular arithmetic to realize; and taking advantage of multithreading could make three clocks run at the same time.
