Django is very easy to learn and get started with. You can learn Django in a couple of weeks, however to become really good at Django you will need time and you will need to build projects. You can even learn Django faster by building following an end to end certification course that also helps you build a project.
with proper understanding of the basic concepts in django you can learn it very quickly.
If you wish to learn more about Django you can take this end to end Django certification course.
If you just wish to get your feet wet and try Django out you can follow this Django tutorial.