Timezones usages in library (expiration validation)

[dmtzs]

Hello, I see this in the documentation
jwt.encode({"exp": datetime.now(tz=timezone.utc)}, "secret")

I know that importing pytz for example I can specify the timezone and send it as an argument inside the .now parentheses.

The problem here is that when I do that the validation looks like it doesn't work, is there a way to validate that natively with the library or I need to handle that by myself? An example below:

from datetime import datetime
import pytz

newYorkTz = pytz.timezone("America/New_York") 
timeInNewYork = datetime.now(newYorkTz)

If I do the code above expiration validation of the library will still work or I need to handle that by myself?
Thank you in advance for the support