Perfect World Clock is the perfect tool for the frequent traveler or when working with people in different time zones. Accurate local time for thousands of cities around the world. Up-to-date information about time zones and Daylight Saving Time (DST) switches. Perfect World Clock is the perfect tool for the frequent traveler or when working with people in different time zones. Ever wondered what time it is in your destination city or back home when travelling? Need to keep track of different time zones? Ever accidentally called your mum in the middle of the night when you've been abroad? Perfect World Clock has the answer: Show current date & time for places all over the world. And it's free. FEATURES. Show time at current location and any location world-wide. Easy and intuitive user interface. VERY energy efficient. Multiple clocks support. Quick search for locations. Displaying 12H or 24H clock format. Optional display of date.