diff -r ce39a4ec2906 Doc/library/datetime.rst
--- a/Doc/library/datetime.rst	Thu May 10 05:16:41 2012 +0200
+++ b/Doc/library/datetime.rst	Thu May 10 16:00:35 2012 -0700
@@ -15,14 +15,16 @@
 formatting and manipulation. For related
 functionality, see also the :mod:`time` and :mod:`calendar` modules.
 
-There are two kinds of date and time objects: "naive" and "aware". This
-distinction refers to whether the object has any notion of time zone, daylight
-saving time, or other kind of algorithmic or political time adjustment.  Whether
-a naive :class:`.datetime` object represents Coordinated Universal Time (UTC),
-local time, or time in some other timezone is purely up to the program, just
-like it's up to the program whether a particular number represents metres,
-miles, or mass.  Naive :class:`.datetime` objects are easy to understand and to
-work with, at the cost of ignoring some aspects of reality.
+There are two kinds of date and time objects: "naive" and "aware". An aware
+object has sufficient knowledge of applicable algorithmic and political time
+adjustments (such as time zone and daylight saving time information) to locate
+itself relative to other aware objects.  An aware object is used to represent a
+concrete moment in time that is not open to interpretation.  Whether a naive
+:class:`.datetime` object represents Coordinated Universal Time (UTC), local
+time, or time in some other timezone is purely up to the program, just like it's
+up to the program whether a particular number represents metres, miles, or mass.
+Naive :class:`.datetime` objects are easy to understand and to work with, at the
+cost of ignoring some aspects of reality.
 
 For applications requiring more, :class:`.datetime` and :class:`.time` objects
 have an optional time zone information attribute, :attr:`tzinfo`, that can be
@@ -114,10 +116,13 @@
 
 Objects of the :class:`date` type are always naive.
 
-An object *d* of type :class:`.time` or :class:`.datetime` may be naive or aware.
-*d* is aware if ``d.tzinfo`` is not ``None`` and ``d.tzinfo.utcoffset(d)`` does
-not return ``None``.  If ``d.tzinfo`` is ``None``, or if ``d.tzinfo`` is not
-``None`` but ``d.tzinfo.utcoffset(d)`` returns ``None``, *d* is naive.
+An object of type :class:`.time` or :class:`.datetime` may be naive or aware.
+A :class:`.datetime` object *d* is aware if ``d.tzinfo`` is not ``None`` and
+``d.tzinfo.utcoffset(d)`` does not return ``None``.  If ``d.tzinfo`` is
+``None``, or if ``d.tzinfo`` is not ``None`` but ``d.tzinfo.utcoffset(d)``
+returns ``None``, *d* is naive.  A :class:`.time` object *t* is aware
+if ``t.tzinfo`` is not ``None`` and ``t.tzinfo.utcoffset(None)`` does not return
+``None``.  Otherwise, *t* is naive.
 
 The distinction between naive and aware doesn't apply to :class:`timedelta`
 objects.