Oops...forgot to add what you want.

       %U     The week number of the current year as a decimal number,
range  00  to  53,
              starting  with the first Sunday as the first day of week 01.
See also %V and
              %W.

And this one:
       %V     The ISO 8601:1988 week number of the current year as a decimal
number, range
              01  to  53,  where  week 1 is the first week that has at least
4 days in the
              current year, and with Monday as the first day of the week.
See also %U  and
              %W. (SU)

But SQLite doesn't implement those.


-----Original Message-----
From: sqlite-users-boun...@sqlite.org
[mailto:sqlite-users-boun...@sqlite.org] On Behalf Of Denis Burke
Sent: Wednesday, June 19, 2013 11:21 AM
To: sqlite-users@sqlite.org
Subject: [sqlite] First Day of Week Inconsistency

The built-in function strftime properly (imho) responds to the '%w' command
for day of week with Sunday as day 0.

e.g. -  strftime ('%w','2013-06-19')
->  3

But the built-in function for returning week of the year treats weeks as
though they begin on Monday, not Sunday:
e.g.
strftime ('%W','2013-06-19')
-> 24
strftime ('%W','2013-06-17')
-> 24
strftime ('%W','2013-06-16')
-> 23


It seems to me these useful functions are inconsistent.  Is it possible to
modify %W to treat Sunday as the first day of the week?

Thanks,
Denis Burke
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