How long does it take to make a render?

I'm really curious about the time it takes to create a render. Could you please explain to me how long this process typically lasts? I've heard that it can vary depending on the complexity of the scene and the power of the computer being used. But I'd like to get a general idea. Is it a matter of minutes, hours, or even days? And what factors influence this timing the most? I'm really fascinated by the technology behind rendering and would love to know more about it. So, if you don't mind, could you elaborate on this topic for me?