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Dates

Spell out months in text. In tables, figures, and references, abbreviate months with the first 3 letters.

In running text, write the date as Month DD, YYYY. Set the year off in commas only if it is used with both month and day.

We conducted a study in January 2003 on the prevalence…

We began a study on January 3, 2003, on the prevalence…

In tables and figures, avoid the constructions MM/DD/YYYY and DD/MM/YYYY (because usage is not consistent worldwide and they can be confused with each other). In references and in the body of tables, dates should be written as YYYY Mon DD (e.g., 2006 Sep 1).

Additional Information:

Formatting AM and PM
Using time abbreviations in tables, figures, Methods section

Page created: February 04, 2010
Page updated: September 25, 2013
Page reviewed: September 25, 2013
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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