Coordinated Universal Time, the basis for the worldwide system of time. Determined using atomic clocks and maintained by the US Naval Observatory and other laboratories around the world. Adjusted occasionally with leap seconds to maintain synchronization with the solar day based on the rotation of the earth
Source: 76
Subscribe to The Standard, our monthly newsletter, to stay up-to-date with ATSC news and events around the world.
ATSC
1300 I Street NW, Suite 400E
Washington, DC 20005 USA
Do you have questions about ATSC?
ATSC, The Broadcast Standards Association, is defining the future of broadcast around the world with the Internet Protocol-based ATSC 3.0 next-generation standard. ATSC is an international, non-profit organization developing voluntary multimedia standards. ATSC member organizations represent the broadcast, professional services and equipment, motion picture, consumer technology, computer, cable, satellite, and semiconductor industries.
© 2026 ATSC
