Thread:RyaNayR/@comment-12699193-20190201014031

It's always looked weird to me, but the comma after the date is correct.

http://www.thepunctuationguide.com/comma.html#dates When the date appears in the middle of a sentence, commas should appear both before and after the year.
 * Her arrival on April 10, 1988, was considered a turning point for the company.

 