storage.py 文件源码

def _possibly_make_aware(dt):
    """
    Convert a datetime object in the local timezone to aware
    in UTC, if USE_TZ is True.
    """
    # This function is only needed to help with the deprecations above and can
    # be removed in Django 2.0, RemovedInDjango20Warning.
    if settings.USE_TZ:
        tz = timezone.get_default_timezone()
        return timezone.make_aware(dt, tz).astimezone(timezone.utc)
    else:
        return dt