The IELTS test assesses your ability in listening, reading, writing and speaking in less than three hours. There are two types of the IELTS test, IELTS Academic and IELTS General Training (GT). For both the modules listening and speaking are same whereas subject matter of Reading and Writing components differs depending on the test you are taking.
The Listening, Reading and Writing components of all tests are completed on the same day, with no breaks. However, speaking can be completed a week before or after the other/main tests. This will be advised by your test centre. The total test time is 2 hours and 45 minutes.