Kevin: Try looking in Google for "ISO 8601 week". It may help answer some of your questions.
Bill > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Kevin King > Sent: Thursday, October 27, 2005 12:38 PM > To: [email protected] > Subject: RE: [U2] Week of the year (UV) > > Barry is right, the definition of "year" (beit "fiscal", > "calendar" or some variant thereof) is one of several > important facets of the problem that must be defined before > formulating a solution. For some companies, January 1st is > actually part of the last (52nd or 53rd) calendar week of the > previous year, and the actual calendar week 1 could start on > the Monday, such as this year with 1/3/2005. > > Some questions to consider: > > * What day is considered the first day of the year? (Not > always January 1, particularly if talking a fiscal calendar.) > > * What day is considered the first day of a given week? Wall > calendars may show Sunday as the first day of the week, but > for each unique company it could be Monday (first working > day), Friday (last working day), Saturday (last working day), > or really any other day. > > * When in a 53 week year, is the 53rd week really considered > a 53rd week, or should it be an extended period on the 52nd > week? Keep in mind that it may be possible to have a 53 week > year without a leap year based on the answers to the previous > questions and depending on what weekday the first of the year > shows up on. > > These are just some considerations I've faced when writing > code for this week number calculation. Your individual > results may vary. > > -Kevin > [EMAIL PROTECTED] > http://www.PrecisOnline.com > ------- > u2-users mailing list > [email protected] > To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
