Posted by: episystechpubs | September 17, 2014

Nifty Nuggets: Time of Day and Time Zones

There are new guidelines for indicating time of day and time zones in the JHA Style Guide for Technical Communication and Training.

Guideline Examples
· For time of day, use hours and minutes (8:00, not 8).

· Use a.m. and p.m. (lowercase, with periods).

· Use two-letter abbreviations for time zones, or spell out the time zone using capital letters. Do not indicate Standard or Daylight time.

o ET – Eastern Time

o CT – Central Time

o MT – Mountain Time

o PT – Pacific Time


· 8:00 a.m.

· 5:30 p.m. ET

· 3:45 p.m. Central Time


8 AM

5:30 p.m. EST

3:45 P.M. Central Standard Time

Jackie Solano | Technical Editor | Symitar®

8985 Balboa Ave. | San Diego, CA 92123 | Ph. 619.542.6711 | Extension: 766711

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