UTC [Coordinated Universal Time] Law and Legal Definition

According to 49 CFR 395.2 [Title 49 – Transportation; Subtitle B Other Regulations Relating to Transportation; Chapter III Federal Motor Carrier Safety Administration, Department of Transportation; Subchapter B Federal Motor Carrier Safety Regulations; Part 395 Hours of Service Of Drivers], UTC (Coordinated Universal Time) is “the international civil time standard, determined by using highly precise atomic clocks. It is the basis for civil standard time in the United States and its territories. UTC time refers to time kept on the Greenwich meridian (longitude zero), which is 5 hours ahead of Eastern Standard Time. UTC times are expressed in terms of a 24-hour clock. Standard time within any U.S. time zone is offset from UTC by a given number of hours determined by the time zone's distance from the Greenwich meridian.”