week number systems for Gregorian year according to ISO-8601 or starting on sundays, saturdays
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Updated
Jun 15, 2021 - JavaScript
ISO 8601 is an ISO standard that specifies representations of dates of the Gregorian calendar and times based on the 24-hour clock, as well as composite elements of them, as character strings for use in information interchange. It is also applicable for representing times and time shifts based on Coordinated Universal Time (UTC).
week number systems for Gregorian year according to ISO-8601 or starting on sundays, saturdays
Get a `datetime` attribute for the HTML `<time>` element (and others).
Created by International Organization for Standardization
Released June 1988