On Tue, 15 Jan 2008, [EMAIL PROTECTED] wrote:
I believe I have identified a bug in the GNU coreutils "date" utility
when handling the PDT timezone.
I'm running Fedora 8 kernel 2.6.23.9-85.fc8, and the command "date -
-version" reports: date (GNU coreutils) 6.9
[snip]
$ date -d"Tue Jan 14 08:25:26 PDT 2008" +%s
date: invalid date `Tue Jan 14 08:25:26 PDT 2008'
Note that EST, EDT and PST work fine, however, PDT is listed as
invalid.
Odd, this seems to depend on your current timezone setting:
$ export TZ=UTC
$ date -d"Tue Jan 14 08:25:26 PDT 2008" +%s
1200324326
$ export TZ=America/Los_Angeles
$ date -d"Tue Jan 14 08:25:26 PDT 2008" +%s
date: invalid date `Tue Jan 14 08:25:26 PDT 2008'
or put more simply:
$ TZ=America/Los_Angeles date -d '12:00 PDT'
date: invalid date `12:00 PDT'
This report can be generalised to "using the time_zone_table entry
corresponding to the local DST state *not* currently in effect gives an
error".
A few more examples (which depend on today's date):
$ TZ=Europe/London date -d '12:00 BST'
date: invalid date `12:00 BST'
TZ=America/Chicago date -d '12:00 CDT'
date: invalid date `12:00 CDT'
TZ=America/New_York date -d '12:00 PDT'
Tue Jan 15 14:00:00 EST 2008
TZ=Pacific/Auckland date -d '12:00 NZST'
date: invalid date `12:00 NZST'
Although the coreutils documentation cautions about using ambiguous
timezone labels like this, I don't see any mention of (or reason for)
the error message you've found.
Cheers,
Phil
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