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 |
Correct:
· 8:00 a.m. · 5:30 p.m. ET · 3:45 p.m. Central Time Incorrect: 8 AM 5:30 p.m. EST 3:45 P.M. Central Standard Time |
Jackie Solano | Technical Editor | Symitar®
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