microseconds should not be used, as :class:`date` objects have no such
values. If they're used anyway, ``0`` is substituted for them.
+For the :meth:`datetime.strptime` class method, the default value is ``1900-01-01T00:00:00.000``:
+any components not specified in the format string will be pulled from the default value. [#]_
+
The full set of format codes supported varies across platforms, because Python
calls the platform C library's :func:`strftime` function, and platform
variations are common. To see the full set of format codes supported on your
.. rubric:: Footnotes
.. [#] If, that is, we ignore the effects of Relativity
+.. [#] Passing ``datetime.strptime('Feb 29', '%b %d')`` will fail since ``1900`` is not a leap year.