Use a consistent date format throughout the document
Write the month, day, and year in the required order for your region or style guide
Spell out the month when writing formal dates
Use numerals for the day and year unless a style guide says otherwise
Include commas where required by the chosen format
Avoid mixing different date formats in the same document
Use leading zeros only if required by the format
Write the full year to prevent confusion
Match the date format to the audience and location
Check the preferred style guide before finalizing the date