Colons and semi-colons go outside the end quotation marks.
Numbers
- In general -- but there are many exceptions -- spell out numbers zero through nine, use numerals for 10 and above. Use figures for sports scores.
- Percentages are always expressed as numeral followed by the word "percent." Example:The unemployment rate has risen by 12 percent.
Time
- Use figures, except for noon and midnight ; use colon to separate hours from minutes (4 p.m., 4:15 p.m.) Five o'clock is acceptable but time listings with a.m. or p.m. are preferred.
- Do not use -st, -nd, -rd or -th with the numbers. It's Oct. 1 through Oct. 15 -- not Oct. 1st through Oct. 15th.
- Spell out months if they stand alone. Abbreviate Jan., Feb., Aug., Sept., Oct., Nov. and Dec. when used with a specific date. My birthday is in the middle of September. My niece's birthday is Sept. 2. If you are just saying a month and a year, don't put a comma between them: October 2014.
- Use quotation marks -- not underlining or italics -- for books, songs, television shows, computer games, oems, lectures, speeches and works of art. Leave magazines, newspapers, the Bible and reference catalogues as-is.
- United States is spelled out when used as a noun but often abbreviated when used as an adjective" The United States is a country. I travel with my U.S. documents.
- Spell out the official name of something the first time you mention it; use the abbreviation after that. It's University of Massachusetts the first time you mention it and UMass after that.
Miscellaneous
- Miles - Use figures for ALL distances. (This was a 2013 AP style change). "My flight covered 1,113 miles." "The airport runway is 5 miles long."
- Only use one space after a period, in between sentences. (In the days of typewriters, we used two.)