I have a timezone aware `timestamptz` field in PostgreSQL. When I pull data from the table, I then want to subtract the time right now so I can get it's age.

The problem I'm having is that both `datetime.datetime.now()` and `datetime.datetime.utcnow()` seem to return timezone unaware timestamps, which results in me getting this error:

```
TypeError: can't subtract offset-naive and offset-aware datetimes 

```

Is there a way to avoid this (preferably without a third-party module being used).

EDIT: Thanks for the suggestions, however trying to adjust the timezone seems to give me errors.. so I'm just going to use timezone unaware timestamps in PG and always insert using:

```
NOW() AT TIME ZONE 'UTC'

```

That way all my timestamps are UTC by default (even though it's more annoying to do this).