How much time will it take to learn machine learning on my own?

Hi,

I am beginner in Data Science and machine learning field. I am searching for the tutorials to learn:

How much time will it take to learn machine learning on my own?

Try to provide me good examples or tutorials links so that I can learn the topic "How much time will it take to learn machine learning on my own?". Also tell me which is the good training courses in Machine Learning, Artificial Intelligence and Data Science for beginners.

Thanks