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Displayed in a variety of useful formats. Site is a front-end to U.S. government atomic clocks.
http://www.atomictime.net/
Offers information about the history of the creation of DST and a petition to stop the practice.
http://www.standardtime.com/
Home of world time since 1884.
http://www.greenwichmeantime.com/
An Internet time zone which divides every day into 360 degrees of time.
http://www.newearthtime.net/
Standard global time zone for business that does not favor one country or location.
http://www.omnitime.com/
The Long Now Foundation was established in 1996 to develop the Millennium Clock & Library Projects.
http://www.longnow.org/
Earth has 4 simultaneous days within only 1 rotation.
http://www.timecube.com/