Re: Wrong Year given by %G (and %g)

[Bob Proulx]

Carlo Wood wrote:
> At this time
> 
> >date
> Mon Dec 29 02:23:36 CET 2003

Running cal today says:
     December 2003
  Su Mo Tu We Th Fr Sa
      1  2  3  4  5  6
   7  8  9 10 11 12 13
  14 15 16 17 18 19 20
  21 22 23 24 25 26 27
  28 29 30 31

So Thursday starts the new year.  This week contains that first week.
This is now week number one of 2004?

  date +%V
  01

This is the first week of the new year.

       %G     the 4-digit year corresponding to the %V week number

> %G format gives the year 2004:
> 
> >date +%G
> 2004

Seems good so far.  Week number 1 in 2004.

> It didn't do so yesterday.

I don't know the definition but it apears that the week starts on
Monday.

  date --date='28 Dec 2003' +%V
  52

  date --date='29 Dec 2003' +%V
  01

Since it is a "work week" usage that makes perfect sense to me.  Work
weeks start on Monday to most industry.

Bob