Internationl standard to dating documents

Posted by / 09-Sep-2017 23:20

Internationl standard to dating documents

Especially authors of Web pages and software engineers who design user interfaces, file formats, and communication protocols should be familiar with ISO 8601.Contents: Date, time of day, time zone, software hints.by Markus Kuhn International Standard ISO 8601 specifies numeric representations of date and time.This standard notation helps to avoid confusion in international communication caused by the many different national notations and increases the portability of computer user interfaces.

Considering the highest possible week number, the worst case is a leap year like 1976 that starts with a Thursday, because this keeps the highest possible number of days of W01 in the previous year, i.e. In this case, the Sunday of W52 of the worst case year is day number 4 51*7=361 and 361-366=5 days of W53 belong still to this year, which guarantees that in the worst case year day 4 (Thursday) of W53 is not yet in the next year, so a week number 53 is possible.

2/4/95, 4/2/95, 95/2/4, 4.2.1995, 04-FEB-1995, 4-February-1995, and many more.

Especially the first two examples are dangerous, because as both are used quite often in the U. and in Great Britain and both can not be distinguished, it is unclear whether 2/4/95 means 1995-04-02 or 1995-02-04.

The standard notation for this variant representing the day 1995-02-04 (that is day 035 of the year 1995) is Leap years are years with an additional day YYYY-02-29, where the year number is a multiple of four with the following exception: If a year is a multiple of 100, then it is only a leap year if it is also a multiple of 400.

For example, 1900 was not a leap year, but 2000 is one.

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like 1/1/0), it has been suggested that the year 2000 is an excellent opportunity to change to the standard date notation.

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