This part of the Manual of Style aims to achieve consistency in the use and formatting of numbers, dates, times, measurements, currencies and coordinates in English Wikipedia articles. Consistent standards make articles easier to read, write, and edit. Where this manual provides options, consistency should be maintained within an article, unless there is a good reason to do otherwise. In direct quotations, the original text should be preserved.
Edit warring over optional styles (such as 14 February and February 14) is unacceptable. If an article has been stable in a given style, it should not be converted without a style-independent reason. Where in doubt, defer to the style used by the first major contributor.
In June 2005, the Arbitration Committee decided that, when either of two styles is acceptable, it is inappropriate for an editor to change an article from one to the other without substantial reason; for example, with respect to the British date format as opposed to the American format, it would be acceptable to change from American format to British if the article concerned a British subject. In February 2006, the Committee ruled, "Wikipedia does not mandate styles in many different areas; these include (but are not limited to) American vs. British spelling, date formats, and citation style. Where Wikipedia does not mandate a specific style, editors should not attempt to convert Wikipedia to their own preferred style, nor should they edit articles for the sole purpose of converting them to their preferred style, or removing examples of, or references to, styles which they dislike." They also ruled that, "Users who focus in a disruptive way on an issue or subject may be banned from editing with respect to that issue or subject."