def METHOD_NAME(make_organization, make_user_for_organization):
    organization = make_organization()
    user = make_user_for_organization(organization, _timezone="Europe/London")
    _7_59_utc = timezone.datetime(2023, 8, 1, 7, 59, 59, tzinfo=timezone.utc)
    _8_utc = timezone.datetime(2023, 8, 1, 8, 0, 0, tzinfo=timezone.utc)
    _17_utc = timezone.datetime(2023, 8, 1, 16, 0, 0, tzinfo=timezone.utc)
    _17_01_utc = timezone.datetime(2023, 8, 1, 16, 0, 1, tzinfo=timezone.utc)
    assert user.is_in_working_hours(_7_59_utc) is False
    assert user.is_in_working_hours(_8_utc) is True
    assert user.is_in_working_hours(_17_utc) is True
    assert user.is_in_working_hours(_17_01_utc) is False