Find today's date on several different cultural and religious calendars. Includes section on Celestial data, countdown clocks, and information on the dates past events. Time - Displayed in a variety of useful formats.
Site is a front-end to U.S. government atomic clocks.
A History - The history of the western calendar and the clock. Calendar Zone - A categorized collection of calendar related sites. NIST Time and Frequency Division - The National Institute of Standards and Technology maintains time and frequency standards for the United States. Time References - To set your watch or clock accurately using a time reference. Explains the various options for residents of North America.