1-6 IAT Time Change
U.S. Naval Observatory master clock, at a tone Eastern standard Time is 11 hours, 12 minutes and 25 seconds. That is the official voice of time in the United States. It is the U.S. Naval Observatory master clock announcer and many radio and television stations depend upon it. The US Naval observatories written mission is determining the positions and motions of the earth, sun, moon, planets and stars and other celestial objects. This provides astronomical data determining precise time Measuring the Earth's rotation and maintaining the master clock of the United States. The US works off the Gregorian or Christian calendar and our concept of a year is based on the Earth's motion around the Sun, the time from one fixed point such as the solstice or the equinox to the next is called a tropical year. Its length is about 365 days but varies by a few minutes or hours. Here's where time varying gets me a little nervous. Time through the ages has been adapted for many purposes. The Romans were known to change the calendar to keep a politician in office longer.