From Martin Maechler <maechler@stat.math.ethz.ch>  Thu Apr 18 13:41:57 2002
From: Martin Maechler <maechler@stat.math.ethz.ch> (Martin Maechler)
Date: Thu, 18 Apr 2002 14:41:57 +0200
Subject: [Rd] strptime mysteriously adds a day - 0S-specific: Linux and Windows (so far) (PR#1466)
In-Reply-To: <200204181213.OAA05366@pubhealth.ku.dk>
References: <200204181213.OAA05366@pubhealth.ku.dk>
Message-ID: <15550.48917.887461.113981@gargle.gargle.HOWL>

>>>>> "Jason" == Jason Turner <jasont@indigoindustrial.co.nz> writes:

    Jason> strptime() mysteriously adds a day to a date, unless the year
    Jason> is specified.  Tested on:
    Jason> Linux (RedHat 6.0) - R version 1.4.1 and R-devel.
    Jason> Windows - R version 1.4.1

    Jason> Bug isn't found on OpenBSD, R version 1.4.1.

I confirm the bug (R-devel, Redhat 7.1)
To reproduce, it's sufficient to work with 
"%d %B" or "%d %b" .

What happens is that January and February work okay, and all
months from March produce the problem,

e.g.

> strptime("28 Feb",format="%d %b")# ok
[1] "2002-02-28"
> strptime("19 March",format="%d %B")# wrong
[1] "2002-03-20"

Martin
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[Rd] strptime mysteriously adds a day - 0S-specific: Linux and Windows (so far) (PR#1466)
Martin Maechler