J. T. Conklin wrote the patch:
http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/27929
to provide long-awaited support for parsing ISO 8601 "T"-separated
date-time strings.
Here's most of what I'll be adding in coreutils once that goes
into gnulib. (along with an update to make coreutils use
the latest from gnulib, of course)
>From 9dd3a983f4999c75dc0da94c386e2ef3105ab906 Mon Sep 17 00:00:00 2001
From: Jim Meyering <meyer...@redhat.com>
Date: Fri, 19 Aug 2011 00:29:42 +0200
Subject: [PATCH] date: support parsing of ISO-8601-with-"T" dates
Thanks to an improvement in gnulib's parse-datetime module,
commands like this now succeed (output manually indented):
$ ./date -u -d 2004-02-29T16:21:42.33+07:00 +%FT%T.%N%z
2004-02-29T09:21:42.330000000+0000
* tests/misc/date: Add a test to exercise the new-in-gnulib
parsing of ISO8601-with-"T" dates.
* NEWS (New features): Mention it.
---
NEWS | 6 ++++++
tests/misc/date | 3 +++
2 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/NEWS b/NEWS
index 6e24f5c..b23ebb1 100644
--- a/NEWS
+++ b/NEWS
@@ -42,6 +42,12 @@ GNU coreutils NEWS -*-
outline -*-
** New features
+ date now accepts ISO 8601 date-time strings with "T" as the
+ separator. It has long parsed dates like "2004-02-29 16:21:42"
+ with a space between the date and time strings. Now it also parses
+ "2004-02-29T16:21:42" and fractional-second and time-zone-annotated
+ variants like "2004-02-29T16:21:42.333-07:00"
+
md5sum accepts the new --strict option. With --check, it makes the
tool exit non-zero for any invalid input line, rather than just warning.
This also affects sha1sum, sha224sum, sha384sum and sha512sum.
diff --git a/tests/misc/date b/tests/misc/date
index dd72544..6f7a530 100755
--- a/tests/misc/date
+++ b/tests/misc/date
@@ -29,6 +29,7 @@ $ENV{TZ} = 'UTC0';
my $t0 = '08:17:48';
my $d0 = '1997-01-19';
my $d1 = "$d0 $t0 +0";
+my $dT = "${d0}T$t0+0"; # ISO 8601 with "T" separator
my $ts = '08:17:49'; # next second
my $tm = '08:18:48'; # next minute
@@ -72,6 +73,8 @@ my @Tests =
# ['2', "-d '$d1' +'%c'", {OUT=>"Sun Jan 19 $t0 1997"}],
['3', "-d '$d1' +'%d_%D_%e_%h_%H'", {OUT=>"19_01/19/97_19_Jan_08"}],
+ ['3T',"-d '$dT' +'%d_%D_%e_%h_%H'", {OUT=>"19_01/19/97_19_Jan_08"}],
+
['4', "-d '$d1' +'%I_%j_%k_%l_%m'", {OUT=>"08_019_ 8_ 8_01"}],
['5', "-d '$d1' +'%M_%n_%p_%r'", {OUT=>"17_\n_AM_$t0 AM"}],
['6', "-d '$d1' +'%s_%S_%t_%T'", {OUT=>"853661868_48_\t_$t0"}],
--
1.7.6.857.gf34cf
