diff --git a/Doc/library/datetime.rst b/Doc/library/datetime.rst
--- a/Doc/library/datetime.rst
+++ b/Doc/library/datetime.rst
@@ -1448,7 +1448,7 @@ methods.  Exactly which methods are need
 
    The default implementation of :meth:`dst` raises :exc:`NotImplementedError`.
 
-
+/
 .. method:: tzinfo.tzname(dt)
 
    Return the time zone name corresponding to the :class:`.datetime` object *dt*, as
@@ -1568,11 +1568,12 @@ only EST (fixed offset -5 hours), or onl
 .. seealso::
 
    `pytz <http://pypi.python.org/pypi/pytz/>`_
-      The standard library has no :class:`tzinfo` instances except for UTC, but
-      there exists a third-party library which brings the *IANA timezone
-      database* (also known as the Olson database) to Python: *pytz*.
+      The standard library has :class:`timezone` class for handling
+      arbitrary fixed offsets from UTC and :attr:`timezone.utc`
+      as UTC timezone instance.
 
-      *pytz* contains up-to-date information and its usage is recommended.
+      *pytz* library brings the *IANA timezone database* (also known as
+      the Olson database) to Python and its usage is recommended.
 
    `IANA timezone database <http://www.iana.org/time-zones>`_
       The Time Zone Database (often called tz or zoneinfo) contains code and
@@ -1593,6 +1594,8 @@ to represent timezone information in the
 offsets are used in different days of the year or where historical
 changes have been made to civil time.
 
+.. versionadded:: 3.2
+
 
 .. class:: timezone(offset[, name])