Writing & StyleStyle guide

Month Day Year Date Format

Month–day–year is a common human-readable date order and Microsoft’s house style uses forms such as “July 31, 2016.” Other regional guides use different orders, so the correct choice depends on audience, locale, and governing style.

Quick answer

Month–day–year is a valid house-style format, for example “July 31, 2016.” Use it when your locale or style guide calls for it rather than treating it as the only English date order.

Key details

Core Issuehuman-readable month–day–year date order
ExampleJuly 31, 2016
Scopelocale and house style, not a universal English rule

Important caveats

Contrast Boundary

Other regional styles differ; the Australian Government Style Manual uses day–month–year in body text, so choose the order required by audience and house style.

Further guidance

Microsoft Style

Microsoft specifies month day, year for its prose style, such as “July 31, 2016.”

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. Date and time terms — Microsoft Style Guide (opens in a new tab)Microsoft · Microsoft house style for AM/PM and human-facing time notation
  2. Dates and time — Australian Government Style Manual (opens in a new tab)Australian Government Style Manual · Australian Government guidance for day–month–year dates, ordinal dates, decades, centuries, time zones, and en-dash spacing in date/time spans

Related guides

Writing & Style

Date Format: Day Month Year

Day–month–year is a legitimate human-readable date order used by some regional and institutional styles. The Australian Government Style Manual uses forms such as “22 July 2024,” while Microsoft’s house style uses month–day–year; choose the convention that matches your audience and style guide.

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