A calendar date is a reference to a particular day represented within a calendar system.
The date of a particular event depends on the observed time zone.
For example, the air attack on Pearl Harbor that began at a.m.
This date format is used in Kazakhstan, Latvia, Nepal and Turkmenistan.
According to the Official rules of documenting in governmental authorities, Many numerical forms can create confusion when used in international correspondence, particularly when abbreviating the year to its final two digits.
In the United Kingdom, while it is regarded as acceptable albeit less common to write month-name day, year, this order is never used when written numerically.