diff -r ce85a1f129e3 Doc/library/time.rst
--- a/Doc/library/time.rst	Tue Oct 18 11:48:35 2016 +0900
+++ b/Doc/library/time.rst	Tue Oct 18 09:57:28 2016 -0700
@@ -597,6 +597,9 @@
    Resets the time conversion rules used by the library routines. The environment
    variable :envvar:`TZ` specifies how this is done.
 
+   Updates the following globals: ``timezone``, ``daylight``, ``altzone`` and 
+   ``tzname``.
+
    Availability: Unix.
 
    .. note::