There are two types of IELTS: Academic and General Training. All test takers take the same Listening and Speaking tests but different Reading and Writing tests. Make sure that you prepare for the correct test type.
The Listening, Reading, and Writing sections of all IELTS tests are completed on the same day, with no breaks in between them.
The Speaking section, however, can be completed up to a week before or after the other tests. The total test time is 2 hours and 45 minutes.