Re: Strange problem with date(1) using the -d option calculating the wrong day of the week

[christos%astron.com@localhost (Christos Zoulas)]

In article <034d01cf90b0$0f8aeb40$2ea0c1c0$@SeQent.Com>,
Scott Burns <Scott.Burns%SeQent.Com@localhost> wrote:
>Having an odd problem on a new 6.1.4 machine with the date(1) command using
>the "-d" parameter. It is resolving a +"%a" to the wrong day of the week on
>one server but not the older 5.1.2 machine.
>
>==============================================
>NetBSD/amd64 - 5.1.2 - Old server
>==============================================
>
>% uname -a
>NetBSD ncti106.ncti.com 5.1.2 NetBSD 5.1.2 (GENERIC) #0: Thu Feb  2 12:12:28
>UTC
> 2012
>builds%b7.netbsd.org@localhost:/home/builds/ab/netbsd-5-1-2-RELEASE/amd64/201202021
>012Z-obj/home/builds/ab/netbsd-5-1-2-RELEASE/src/sys/arch/amd64/compile/GENE
>RIC
>amd64
>
>% ls -l /etc/localtime
>lrwxr-xr-x  1 root  wheel  34 Nov  6  2010 /etc/localtime ->
>/usr/share/zoneinfo/Canada/Eastern
>
>% date
>Wed Jun 25 15:48:02 EDT 2014
>
>% date -d "07/01/2014" +"%a"
>
>Tue <- Calculates the DOW as a Tuesday - ***CORRECT***
>
>==============================================
>NetBSD/amd64 - 6.1.4 - New install
>==============================================
># uname -a
>NetBSD ncti103.ncti.com 6.1.4 NetBSD 6.1.4 (GENERIC) amd64
>
># ls -l /etc/localtime
>lrwxr-xr-x  1 root  wheel  34 May 16 12:23 /etc/localtime ->
>/usr/share/zoneinfo/Canada/Eastern
>
># date
>Wed Jun 25 15:48:27 EDT 2014
>
># date -d "07/01/2014" +"%a"
>Mon - Calculates the DOW as a Monday - ***INCORRECT***
>
>I have looked at Jan 7th 2014 and it is also a Tues so it is not a parameter
>order of the date issue. Nothing obvious in query-pr.

Hmm, it is correct on current too. -6 is broken for some reason.
Please file a PR

christos