how to get today's date less 18 years

Question

What is the correct way to get date of 18 years ago from today's Date in Swift3?

In Swift2, I had

let startingDate = NSDate(timeIntervalSinceNow: -600000000)

Answer 1

If you want date with 18 year less you can use Calendar unit year for that.

let date = Calendar.current.date(byAdding: .year, value: -18, to: Date())

Output