Geeesh, if a person is born in 1958, say April 1, 1958, they can not draw until they are 62, which is in 2020, not 2019 as the article says. Only if they were born on January 1, 1958 - could they draw in 2019 because they would be deemed to be eligible the month before.
Most people don’t understand that you actually get a year older the day before your birthday. It makes sense if you look at it this way. If you are born on Jan. 1, on Dec. 31 you are a year old—since a year is Jan 1–Dec. 31. The same holds true, of course, for any day you are born.