I'm hoping an EDIFACT geek will know this.
In the EDI Translator product I'm working on, it automatically converts
dates from EDI style dates to ISO 8601 dates which are used by XML. It is
intended to understand all of the date qualifiers for X12 and EDIFACT.
EDIFACT has a few date qualifiers that specify weeks in the year, like
CCYYWW (616) for example. The EDIFACT specification states:
616 CCYYWW
Week within a calendar year: CC = Century; Y = Year; W =
Week (1st week of January = week 01).
However, it is not clear if this is an ISO 8601 week[1] or something else
(like the year divided into 7 day periods starting with Jan 1).
This is important because if affects how the dates are converted to and from
ISO 8601 format. In most years (with ISO 8601 weeks), the first day of the
week will actually be in the prior year.
Anyone know for sure or have a reference on this? Teh google was not very
helpful so far.
Thanks kindly,
Francis
[1] http://en.wikipedia.org/wiki/ISO_week_date
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