Dynamic Spectrum Access Decisions

Appendix EMilitary Time Zone Designators

Spectrum managers provide support for the EMOE in support of unified action partners. Spectrum managers communicate with users across different time zones and provide commanders with operational times established during missions. Support to airborne operations provides the widest use of military time zones during flight missions. Knowledge of global military time zone differences for spectrum managers is a vital skill. Spectrum managers may be called upon to prepare briefings, conduct and assist planning or provide input to critical documents, accurate time zone information is essential.

E.1 Overview

E.1. Military time uses the 24‐hour clock beginning at midnight (0000 hours) and ending at 2359 hours. Military time format eliminates the need for using A.M. and P.M. designations as regular time uses numbers 1 to 12 to identify the hours in a day. In Military time 12 P.M. is 1200 hours, 1 P.M. is 1300 hours up until 11 P.M. where it is 2300 hours. The military uses this standard as it leaves less room for confusion than standard time. The world is divided into 24 military time zones and each military zone has a letter designation and the military phonetic alphabet word.

E.2. The time zone for Greenwich, England is the letter “Z” and the military phonetic word is “Zulu”. Since many U.S. military operations must be coordinated across times zones, the military uses Coordinated Universal Time (formerly Greenwich Mean Time) as the standard ...