Which term is synonymous with the time standard used by most airlines worldwide?

• A. Coordinated Universal Time
• B. Local Time
• C. Atlantic Time
• D. Indian Time

Answer: (A)

Coordinated Universal Time serves as the global reference time that airlines and air traffic control use to schedule and coordinate operations across all time zones. It provides a single, unchanging standard, so flights and crews don’t have to constantly convert between local times around the world. Local Time and regional zones like Atlantic Time or Indian Time depend on location and can shift with daylight saving, which can lead to confusion when routes cross multiple regions. In aviation, UTC is also called Zulu time in radio communications, and most flight plans, dispatch logs, and ATC messages are written in UTC to keep everyone aligned.