Proper dating format
The full standard covers ways to write: You can buy the full standard from the ISO Store, or from the ISO member in your country.
ISO 8601 describes an internationally accepted way to represent dates and times using numbers.
For example, in Microsoft Office Excel for Windows, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,448 days after January 1, 1900.
If you used the online version, only include that date in your citation.
This page includes guidelines for composing letters according to various formats and degrees of formality.
On an individual level this uncertainty can be very frustrating, in a business context it can be very expensive.
Organizing meetings and deliveries, writing contracts and buying airplane tickets can be very difficult when the date is unclear.
Include a margin of one to one-and-a-half inches around each page.