Number of weeks in 2009 / ISO 8601:2004

[Pete]

While most years have 52 weeks, I have come across some information
that there are actually 53 in 2009 due to the leap year. When
displaying the week numbers in Outlook, it is showing only 52. Other
calendars I have come across show 53. Perhaps I am mistaken, but I
would like to know if anyone else has noticed this and if anyone knows
whether Microsoft will be adopting the ISO 8601:2004 standard.

Here are some references:
1. http://en.wikipedia.org/wiki/ISO_8601
2. http://www.phys.uu.nl/~vgent/calendar/isocalendar.htm (see "The
ISO 8601 calendar")
3. http://www.personal.ecu.edu/mccartyr/isowdcal.html
4. Calendar week number defined (according to ISO 8601:2004 [http://
isotc.iso.org/livelink/livelink/4021199/ISO_8601_2004_E.zip?
func=doc.Fetch&nodeid=4021199], see section 2.2.10): ordinal
number which identifies a calendar week within its calendar year
according to the rule that the first calendar week of a year is that
one which includes the first Thursday of that year and that the last
calendar week of a calendar year is the week immediately preceding the
first calendar week of the next calendar year

Thanks in advance.

 

[Bob I]

2009 is NOT, repeat NOT a leapyear.

 

[Diane Poremsky [MVP]]

if you have outlook set to begin the year on the week that begins Jan 1,
there are 52 weeks because Jan 1 2010 is in the last week of Dec. If you
use the option for the first 4 day week, then 2008 had 53 weeks. Outlook
doesn't have an option to follow iso standards, just generalities of when to
begin Jan - on the first day, in the first 4 day week or first full week. I
doubt very much of they will adopt the standard because its easy to match
the calendar in Jan to the ISO standard: Use first 4 day week this yr and
full week next year so the weeks match up.


--
Diane Poremsky [MVP - Outlook]



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