Time.gov is a service cooperatively provided by the two time agencies of the United States: a Department of Commerce agency, the National Institute of Standards and Technology (NIST), and its military counterpart, the U.S. Naval Observatory (USNO).
On April 2, Daylight Savings Time began and Time.gov sprang ahead one hour. In order to confirm what time it actually was, people logged onto this government page, selected their respective time zones, and viewed the current time – accurate to within 0.5 seconds.
Interesting fact: In the FAQ section we learnt that the terms 12 a.m. and 12 p.m. are wrong and should not be used! They are ambiguous; rather than us trying to explain why and using terms like "ante meridiem" you should click here for an explanation!
A simple website with a simple idea, Time.gov was accessed by an estimated 215,000 users in Week 14 (04/02).