DateTimePickerWidget shows only the date picker and not the time picker

[andreamancini-work]

Environment

Flask-Appbuilder version:

pip freeze output:
alembic==1.13.1
annotated-types==0.7.0
anyio==4.4.0
apispec==6.6.1
asgiref==3.8.1
attrs==23.2.0
Babel==2.15.0
blinker==1.8.2
certifi==2024.6.2
charset-normalizer==3.3.2
click==8.1.7
colorama==0.4.6
Deprecated==1.2.14
dnspython==2.6.1
email_validator==2.1.1
exceptiongroup==1.2.1
fastapi==0.111.0
fastapi-cli==0.0.4
Flask==2.3.3
Flask-AppBuilder==4.4.1
Flask-Babel==2.0.0
Flask-JWT-Extended==4.6.0
Flask-Limiter==3.6.0
Flask-Login==0.6.3
Flask-Migrate==4.0.5
Flask-SQLAlchemy==2.5.1
Flask-WTF==1.2.1
greenlet==3.0.3
h11==0.14.0
httpcore==1.0.5
httptools==0.6.1
httpx==0.27.0
idna==3.7
importlib_resources==6.4.0
itsdangerous==2.2.0
Jinja2==3.1.4
jsonschema==4.22.0
jsonschema-specifications==2023.12.1
limits==3.11.0
Mako==1.3.5
markdown-it-py==3.0.0
MarkupSafe==2.1.5
marshmallow==3.21.2
marshmallow-sqlalchemy==0.28.2
mdurl==0.1.2
numpy==1.26.4
ordered-set==4.1.0
orjson==3.10.5
packaging==24.0
pandas==2.0.3
pi==0.1.2
prison==0.2.1
psycopg2-binary==2.9.9
pydantic==2.7.4
pydantic_core==2.18.4
Pygments==2.18.0
PyJWT==2.8.0
python-dateutil==2.9.0.post0
python-dotenv==1.0.1
python-multipart==0.0.9
pytz==2024.1
PyYAML==6.0.1
referencing==0.35.1
requests==2.32.3
rich==13.7.1
rpds-py==0.18.1
shellingham==1.5.4
six==1.16.0
sniffio==1.3.1
SQLAlchemy==1.4.52
SQLAlchemy-Utils==0.41.2
starlette==0.37.2
typer==0.12.3
typing_extensions==4.11.0
tzdata==2024.1
ujson==5.10.0
urllib3==2.2.1
uvicorn==0.30.1
uvloop==0.19.0
watchfiles==0.22.0
websockets==12.0
Werkzeug==3.0.3
wrapt==1.16.0
WTForms==3.1.2

Describe the expected results

Shortly, when I use DateTimeField with a DateTimePickerWidget I see only the calendar tool and not the time picker as you can see in the attached image.

add_form_extra_fields = {
        'contract_date': DateTimeField('Contract Date', default=datetime.today, validators=[DataRequired()],
                                       widget=DateTimePickerWidget())
    }