[Python | Timezone] How to enable timezone in the Python API? #2064

Is your feature request related to a problem? Please describe.
How to use the DateTimeModel for parsing timezones.
Eg: For Sentence "Let's meet at 15:00 GMT Saturday", the following model

text = "Let's meet at 15:00 GMT Saturday"
model = DateTimeRecognizer(Culture.English).get_datetime_model()
predictions = model.parse(text)

print(len(predictions))  # 2
print(predictions[0].text)  # 15:00
print(predictions[1].text)  # Saturday

Yields 15:00 and Saturday.
How would it be possible to extract (15:00 GMT Saturday) as a single entity ?
It seems like there is a way to do it by setting DateTimeOptions.ENABLE_PREVIEW, but can't figure out how exactly to do this.
An example would be amazing.
Thank you