Explained that timezone.now() always returns times in UTC.

.. function:: now()

    Returns an aware or naive :class:`~datetime.datetime` that represents the

    current point in time when :setting:`USE_TZ` is ``True`` or ``False``

    respectively.

    Returns a :class:`~datetime.datetime` that represents the

    current point in time. Exactly what's returned depends on the value of

    :setting:`USE_TZ`:

    * If :setting:`USE_TZ` is ``False``, this will be be a

      :ref:`naive <naive_vs_aware_datetimes>` datetime (i.e. a datetime

      without an associated timezone) that represents the current time

      in the system's local timezone.

    * If :setting:`USE_TZ` is ``True``, this will be an

      :ref:`aware <naive_vs_aware_datetimes>` datetime representing the

      current time in UTC. Note that :func:`now` will always return

      times in UTC regardless of the value of :setting:`TIME_ZONE`;

      you can use :func:`localtime` to convert to a time in the current

      time zone.

.. function:: is_aware(value)

Concepts

========

.. _naive_vs_aware_datetimes:

Naive and aware datetime objects

--------------------------------