According to Authority Tattoo[1]https://authoritytattoo.com/how-long-does-it-take-for-an-ear-piercing-to-close/, how long it takes for an ear piercing to close depends on how old it is:
- New piercing: It takes a few hours to close
- Less than a year old piercing: It takes a couple of days to close
- More than a year old piercing: It takes several weeks to close
The likelihood of a piercing closing up can also depend on where it’s located on your body. For instance, nose, helix and cartilage piercings have a tendency to close up more quickly. A tongue piercing that is less than a year old will probably close up to the point where jewellery cannot be inserted much faster than a year old earlobe, but you can’t count on it.[2]https://www.today.com/style/how-long-it-takes-piercing-close-what-do-if-it-t182513