How long does it take a new iOS developer to create an app?

I'm a new programmer. I know how to create websites and text-based programs with C. I would like to create an iPhone app that is similar to those news apps like BBC, CNN, etc. And also another one that uses the keypad and has pages of sentences inside.

It mostly takes 6 weeks to make a app it carry hard to make a app

For a newbie mobile programmer, it takes days or maybe weeks to create a basic similar app to bbc etc

for a pro programmer, it might be much sooner, also depends on how you design and architect your app, what's the way to do it and how much details are you going to be in.