Recently a friend of mine ask how long will it take them to learn nextjs. but funny enough this questions is much harder to answer than a question like "Reactjs NextJS". The time it takes to learn Next.js can vary depending on your background and how much time you can dedicate to learning. Here’s a general breakdown:

Familiarity with JavaScript and React: If you already have a good grasp of JavaScript and React, you can get comfortable with Next.js in a few days to a couple of weeks by going through the official documentation, tutorials, and building small projects.

Beginner in JavaScript and React: If you're new to both, it may take you a few months to learn the fundamentals of JavaScript and React before diving into Next.js.

Project-Based Learning: If you focus on building projects using Next.js, you may start feeling proficient in about 2 to 4 weeks. This includes building simple applications and exploring its features like routing, data fetching, and API routes.

Advanced Features: Gaining expertise in advanced features (like server-side rendering, static site generation, and deployment) may take an additional few weeks to months, depending on the complexity of the projects you tackle.

if you do want to start and learn nextjs i'd recommend you to read my blog about nextjs, watch videos online on youtube or use gpteach.us to learn nextjs with help of AI.

Ultimately, your learning pace and the time you invest will significantly influence how quickly you grasp Next.js. Consistent practice and building real-world projects are key to solidifying your knowledge.