It doesn’t take much time to learn Tableau, as it is easy to learn and use. But how much time to learn Tableau depends on the time that you could afford to learn Tableau.
If you are serious about Tableau and ready to spend dedicated time for Tableau, then 1 month is sufficient to learn Tableau. But if you are not able to spend more time, you might take 2 months or even 6 months to learn.
In this regard, I would suggest you take up the Tableau certification course from Intellipaat which offers you an instructor-led video with guided projects.
Watch our YouTube video on Tableau training from our experts to help you get started.