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Message-Id: <199804060821.BAA09235@shell1.qpt.com>
Date: Mon, 6 Apr 1998 01:21:59 -0700 (PDT)
From: Sean Adams <sadams@shell1.qpt.com>
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Subject: bin/6223: PST/DST bug in /bin/date
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>Number:         6223
>Category:       bin
>Synopsis:       PST/DST bug in /bin/date
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Apr  6 01:30:01 PDT 1998
>Last-Modified:
>Originator:     Sean Adams
>Organization:
QPT Networks
>Release:        FreeBSD 2.2.5-RELEASE i386
>Environment:

cron script running date command with 10 minute adjustment

>Description:

When my cron job ran the following date command on 
Sun, 5 Apr 1998 03:01:00 -0700 (PDT), it died:

/bin/date -v -10M +%Y.%m.%d.%H.%M

-10M: Cannot apply date adjustment
usage: date [-nu] [-d dst] [-r seconds] [-t west] [+format]
            [-v [+|-]val[ymwdHM]] ... [-f fmt date | [[[[yy]mm]dd]HH]MM[.ss]]        

Obviously, this is due to the PST/DST shift which occurred at 2:00PST. It didn't
have a serious impact - I just lost some statistics samples, but it would be 
nice if date could do the adjustment properly regardless of the "missing" hour.

>How-To-Repeat:

Run the date command with a -10M adjustment just after the switch to DST.

>Fix:
	
The correct output for /bin/date -v -10M +%Y.%m.%d.%H.%M run on
Sun, 5 Apr 1998 03:01:00 -0700 (PDT), would be:

1998.04.05.01.51
>Audit-Trail:
>Unformatted:

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