Issue #2568: Removed bogus rationale for supporting tm_sec=61.
diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
index cad0eb4..2ace965 100644
--- a/Doc/library/datetime.rst
+++ b/Doc/library/datetime.rst
@@ -1663,10 +1663,7 @@
The exact range of years for which :meth:`strftime` works also varies
across platforms. Regardless of platform, years before 1000 cannot be
-used with ``datetime`` module ``strftime()`` methods. The ``time``
-module ``strftime()`` function exibit different behavior depending on
-the value of ``time.accept2dyear`` variable. See :ref:`Year 2000
-(Y2K) issues <time-y2kissues>` for details.
+used with ``datetime`` module ``strftime()`` methods.
+-----------+--------------------------------+-------+
| Directive | Meaning | Notes |
@@ -1710,7 +1707,7 @@
| | AM or PM. | |
+-----------+--------------------------------+-------+
| ``%S`` | Second as a decimal number | \(3) |
-| | [00,61]. | |
+| | [00,59]. | |
+-----------+--------------------------------+-------+
| ``%U`` | Week number of the year | \(4) |
| | (Sunday as the first day of | |
@@ -1767,12 +1764,8 @@
the output hour field if the ``%I`` directive is used to parse the hour.
(3)
- The range really is ``0`` to ``61``; according to the Posix standard this
- accounts for leap seconds and the (very rare) double leap seconds.
- The :mod:`time` module may produce and does accept leap seconds since
- it is based on the Posix standard, but the :mod:`datetime` module
- does not accept leap seconds in :meth:`strptime` input nor will it
- produce them in :func:`strftime` output.
+ Unlike :mod:`time` module, :mod:`datetime` module does not support
+ leap seconds.
(4)
When used with the :meth:`strptime` method, ``%U`` and ``%W`` are only used in
diff --git a/Doc/library/time.rst b/Doc/library/time.rst
index dc6402c..28e994c 100644
--- a/Doc/library/time.rst
+++ b/Doc/library/time.rst
@@ -308,7 +308,7 @@
| ``%y`` | Year without century as a decimal number | |
| | [00,99]. | |
+-----------+------------------------------------------------+-------+
- | ``%Y`` | Year with century as a decimal number. | |
+ | ``%Y`` | Year with century as a decimal number. | \(4) |
| | | |
+-----------+------------------------------------------------+-------+
| ``%Z`` | Time zone name (no characters if no time zone | |
@@ -324,13 +324,20 @@
the output hour field if the ``%I`` directive is used to parse the hour.
(2)
- The range really is ``0`` to ``61``; this accounts for leap seconds and the
- (very rare) double leap seconds.
+ The range really is ``0`` to ``61``; value ``60`` is valid in
+ timestamps representing leap seconds and value ``61`` is supported
+ for historical reasons.
(3)
When used with the :func:`strptime` function, ``%U`` and ``%W`` are only used in
calculations when the day of the week and the year are specified.
+ (4)
+ Produces different results depending on the value of
+ ``time.accept2dyear`` variable. See :ref:`Year 2000 (Y2K)
+ issues <time-y2kissues>` for details.
+
+
Here is an example, a format for dates compatible with that specified in the
:rfc:`2822` Internet email standard. [#]_ ::