Clearing the CFA Level 1 exam is a challenge. You must invest considerable effort and time to prepare for the exam. While devising a study plan, you must keep 350 hours of study for the Level 1 exam. 

Ideally, you must start studying for the CFA Level 1 exam for a minimum of 6-9 months before the examination date. You might need slightly less time to complete the syllabus only if you have a relevant background which is in sync with the course curriculum. 

Customize your study plan to complete the syllabus at your own pace. Various study resources are available, which will help you prepare for the examination.