Sign Up For Our Free Grammar E-Newsletter

Writing Dates and Times

Rule: The following examples apply when using dates:

The meeting is scheduled for June 30.
The meeting is scheduled for the 30th of June.
We have had tricks played on us on April 1.
The 1st of April puts some people on edge. (Some prefer to write it out: The first of April)

Rule: There are differing policies for expressing decades using numerals. Some write the 1980s and the ’80s, others write the 1980′s and the 80′s. However, using two apostrophes (the ’80′s) is awkward and is not recommended.

Correct:
During the ’80s, the world’s economy grew.
During the 1980s, the world’s economy grew.
During the 1980′s, the world’s economy grew.

Not Advised:
During the ’80′s, the world’s economy grew.

Rule: Some writers spell out the time of day, others prefer numbers.

Example: She gets up at four thirty before the baby wakes up.
Example: The baby wakes up at 5 o’clock in the morning.

Rule: Some use numerals with the time of day when exact times are being emphasized.

Example: Her flight leaves at 6:22 a.m.
Example: Please arrive by 12:30 p.m. sharp.

Rule: It is clearer to use noon and midnight rather than 12:00 p.m. or 12:00 a.m.

Note: You may use AM and PM, A.M. and P.M., am and pm, or a.m. and p.m.
Some put a space after the numeral, others do not.

Example: Her flight leaves at 6:22 a.m.
Example: Her flight leaves at 6:22am.
Example: Please arrive by 12:30 P.M. sharp.

 

Pop Quiz: Correct or Incorrect?

1. The last outbreak of smallpox occurred in the late seventy’s.
2. Can you get here by 12:00 midnight?
3. Please deliver the package by August 1st.

 

Pop Quiz Answers:

1. The last outbreak of smallpox occurred in the late seventies.
2. Can you get here by midnight? (leave out 12:00)
3. Please deliver the package by August 1. (OR by the first of August OR by the 1st of August)

To comment on this grammar tip, click on the title.

Posted on Sunday, August 24, 2008, at 11:24 pm