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-rw-r--r--doc/ChangeLog4
-rw-r--r--doc/getdate.texi14
2 files changed, 14 insertions, 4 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog
index dbefc45a2..0694025bf 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,5 +1,9 @@
2006-01-02 Paul Eggert <eggert@cs.ucla.edu>
+ * getdate.texi (General date syntax): Invalid dates are rejected.
+ (Time of day items): Mention the possibility of leap seconds.
+ Problem reported by Dr. David Alan Gilbert.
+
* coreutils.texi: Use @acronym around "ISO" uniformly.
(Date conversion specifiers): Explain %g, %G, and %V a bit better.
diff --git a/doc/getdate.texi b/doc/getdate.texi
index 0150ff21f..919c2990d 100644
--- a/doc/getdate.texi
+++ b/doc/getdate.texi
@@ -1,7 +1,7 @@
@c GNU date syntax documentation
@c Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-@c 2003, 2004, 2005 Free Software Foundation, Inc.
+@c 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
@c Permission is granted to copy, distribute and/or modify this document
@c under the terms of the GNU Free Documentation License, Version 1.1 or
@@ -144,6 +144,11 @@ between round parentheses, as long as included parentheses are properly
nested. Hyphens not followed by a digit are currently ignored. Leading
zeros on numbers are ignored.
+Invalid dates like @samp{2005-02-29} or times like @samp{24:00} are
+rejected. In the typical case of a host that does not support leap
+seconds, a time like @samp{23:59:60} is rejected even if it
+corresponds to a valid leap second.
+
@node Calendar date items
@section Calendar date items
@@ -238,7 +243,8 @@ a number between 0 and 23, @var{minute} is a number between 0 and
@samp{.} or @samp{,} and a fraction containing one or more digits.
Alternatively,
@samp{:@var{second}} can be omitted, in which case it is taken to
-be zero.
+be zero. On the rare hosts that support leap seconds, @var{second}
+may be 60.
@findex am @r{in date strings}
@findex pm @r{in date strings}
@@ -464,8 +470,8 @@ integers and can represent times from 1901-12-13 20:45:52 through
of seconds with nanosecond subcounts, and can represent all the times
in the known lifetime of the universe to a resolution of 1 nanosecond.
-On most systems, these counts ignore the presence of leap seconds.
-For example, on most systems @samp{@@915148799} represents 1998-12-31
+On most hosts, these counts ignore the presence of leap seconds.
+For example, on most hosts @samp{@@915148799} represents 1998-12-31
23:59:59 @sc{utc}, @samp{@@915148800} represents 1999-01-01 00:00:00
@sc{utc}, and there is no way to represent the intervening leap second
1998-12-31 23:59:60 @sc{utc}.