Filter by current time - n hours SQLAlchemy

To filter records based on time difference in SQLAlchemy, the below code can be used.

import datetime, timedelta

n = 10
time_difference = datetime.now() - timedelta(hours=n)
result = session.query(User).filter(
            User.last_active_timestamp < time_difference
        )

We are importing datetime to get the current date-time and timedelta to get the date-time of the last 10 hours. Then we are subtracting them and pass them in our filter query to get the records where last_active_timestamp is less than the time_difference.

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