THE PILOTS JOURNAL
 
 

What is Zulu time? In the aviation world use and refer to time as Zulu time, which is actually Greenwich Mean Time (GMT) in the non-aviation world. GMT is located on the 0⁰ line that runs longitudinally through Greenwich, England. ​ Aviation Zulu time is also known as: Greenwich Mean Time (GMT) Coordinated Universal Time (UTC) ​ Everything in aviation operates off Zulu Time (Z), such as: Aviation weather Flight plans Example: when you file a flight plan with Flight Service S