What hours is SMSPINS available? Instantnumbers June 01, 2017 00:11 Updated Operating Hours: 8am to 11pm (Eastern Standard Time) Monday through Friday. Does not operate on US holidays Related articles How do I buy a pin? What is SMSPINS.COM? How do I open an SMSPINS account? How much do SMS Pins cost and how can I order? Can I reuse a number for a second verification? Comments 0 comments Please sign in to leave a comment.