For example, "7/8" could refer to either 7 August or July 8.In the United States, dates are rarely written in purely numerical forms in formal writing, although they are very common elsewhere; when numerical forms are used, the month appears first.

The number of days between two dates may be calculated.

For example, "24 March 2017" is ten days after "14 March 2017" in the Gregorian calendar.

Many Internet sites use YYYY-MM-DD, and those using other conventions often use -MMM- for the month to further clarify and avoid ambiguity (2001-MAY-09, 9-MAY-2001, MAY 09 2001, etc.).

In addition, the International Organization for Standardization considers its ISO 8601 standard to make sense from a logical perspective.

In this format the most significant data item is written before lesser data items i.e. It is consistent with the big-endianness of the Indian decimal numbering system, which progresses from the highest to the lowest order magnitude.

That is, using this format textual orderings and chronological orderings are identical.A calendar date is a reference to a particular day represented within a calendar system.The calendar date allows the specific day to be identified.This sequence is used primarily in the Philippines and the United States and, to a lesser extent, in Canada.This date format was commonly used alongside the little-endian form in the United Kingdom until the mid-20th century and can be found in both defunct and modern print media such as the London Gazette and The Times, respectively.When numbers are used to represent months, a significant amount of confusion can arise from the ambiguity of a date order; especially when the numbers representing the day, month or year are low, it can be impossible to tell which order is being used.