"The official time is brought to by, the Time Service Dept., U.S. Naval Observatory, the official source of time in the United States and for Wagner Worldwide Enterprises. Accept no imitations!".
I never knew that the National Institute of Standards and Technology (NIST) was the official timekeeper. Back in the mid 90's I saw a link to the Time Service Dept., U.S. Naval Observatory website at http://tycho.usno.navy.mil/ (still alive at this time but might disappear) and have always used that site for timekeeping. Never dawned on me to use a search engine to look for the official timekeeper, they were pretty weak in the mid 90s anyways.
It's funny the stuff that used to be on this page. I had links to:
Another relic of the past was the new image.