A public service provided cooperatively by the National Institute of Standards and Technology (NIST), and its military counterpart, the U.S. Naval Observatory (USNO). Includes links to historical and general interest exhibits pertaining to time.
Provides the correct world times with daylight saving adjustments for every time zone in any country or major city of the world, GMT offset, and a section map. Features a time converter, world time database and atomic clock information.
Interactive world atlas and information on local time as well as sunrise and sunset times in hundreds of cities worldwide. Current time for the map center will show as offset from UTC. Settings that can be customized include zoom in/out, longitude and latitude grid, center for the globe projection, and national borders.
Time and time zone converter. Allows you to create a printable reference card with base reference and cities of your interest. Plan International travel, phone calls, meetings. Know the time anywhere in the world using a frequently updated time zone database.
A graphic view of the current time around the world. Click on a location on the map, or browse the scrollable list, and TimeTicker provides the precise time and date for that zone.
A complete guide to time and time zones; summer time and daylight-saving time world-wide. Provides comprehensive information on Greenwich and time issues, including GMT converter, maps and links to mirrors around the world.
The history of timekeeping from ancient to modern methods. Features illustrations and information on sun clocks and water clocks, mechanical clocks and quartz clocks, and atomic beam clocks. The site also has information on Greenwich Mean Time and world time zones. From the National Institute of Standards and Technology (NIST) Physics Laboratory.
