In observance of the Thanksgiving Day holiday, DTN Customer Service will be open the following hours: Thursday, November 25th : Closed from 12:00 p.m. CT – 5:00 p.m. CT Reopen at 5:00 p.m. CT. Friday, November 26th: Closing at 2:00 p.m. CT. Sunday, November 28th: Regular open at 5:00 p.m. CT. Thanksgiving Day