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. Daylight Saving Time begins for most of the United States at 2 a.m. on the first Sunday of April. Time reverts to standard time at 2 a.m. on the last Sunday of October. This site is an organized collection of links to about 3000 links to horological websites globally. Includes history and technology of clocks and watches, related museums, organisations, journals, libraries, schools etc.