WWV provides time information in what standard?

WWV provides time information in what standard?

• A. UTC
• B. Local mean time
• C. Greenwich sidereal time
• D. International atomic time

Answer: (A)

WWV provides time information in UTC. This civil time standard combines highly accurate atomic time with periodic leap seconds to stay aligned with the Earth's rotation, and WWV’s signals are designed so listeners can discipline their clocks to UTC precisely. Local mean time is a historical local civil time, Greenwich sidereal time is an astronomical measure used for celestial coordinates, and International Atomic Time is a continuous atomic timescale that does not incorporate leap seconds, which is why it isn’t the standard WWV broadcasts.

WWV provides time information in UTC. This civil time standard combines highly accurate atomic time with periodic leap seconds to stay aligned with the Earth's rotation, and WWV’s signals are designed so listeners can discipline their clocks to UTC precisely. Local mean time is a historical local civil time, Greenwich sidereal time is an astronomical measure used for celestial coordinates, and International Atomic Time is a continuous atomic timescale that does not incorporate leap seconds, which is why it isn’t the standard WWV broadcasts.