Life would be slightly easier if dates were expressed in a common format. The manner in which the three numbers, when written, are set off from each other. Whether the numbers less than 10 are written with a leading zero.
Current practice varies.
Whether there are limits to the dates which can be expressed, and if so whether a way is provided to express dates outside this limit. Year, then month, then day. The manner in which the three numbers, when written, are set off from each other. Whether the numbers less than 10 are written with a leading zero. Whether there are limits to the dates which can be expressed.