9 Anonymous In: Question-Answer Which of these is a time zone within the U.S.? 9 Which of these is a time zone within the U.S.? Island Plains Mountain Western 1 Answer Voted Oldest Recent Random Best Answer Goto 2021-04-28T13:07:34+00:00Added an answer on April 28, 2021 at 1:07 pm The correct answer is Mountain. 8 Reply Share Share Share on Facebook Share on Twitter Share on WhatsApp Leave an answerLeave an answerCancel reply Featured image Select file Browse Click on image to update the captcha. Save my name, email, and website in this browser for the next time I comment.