There is no fixed time limit for each passage in the IELTS Reading Test, as the passages can vary in length and difficulty. However, it is generally recommended that you spend around 20 minutes on each section (which includes reading the passages and answering the questions), as the test as a whole is timed for 60 minutes.
It’s important to note that some passages may be shorter and easier, while others may be longer and more challenging. It’s important to allocate your time accordingly and not spend too much time on any one question or passage. If you find that you’re spending too much time on a particular question or passage, move on to the next one and come back to it later if you have time.
Overall, it’s important to practice time management skills during your IELTS Reading test preparation so that you can develop a good sense of how much time to allocate to each section and question type.