AccuSet (16-bit) uses atomic time servers on the Internet to accurately set your PC's internal clock. AccuSet can synchronize your PC's clock with dozens of atomic clock time servers. They can be contacted across the Internet or dialed directly with your modem.If your system clock tends to drift, AccuSet can automatically make corrections to compensate for its error rate, without requiring you to be connected to the Internet. AccuSet can also display the time and date for any five cities in the world, along with sunrise and sunset times and a world map showing areas in sunlight and darkeness. It can also announce the time at pre-scheduled intervals, using a chime that sounds like Big Ben, or a male or human voice.