After you file

....Unlikely that the IRS is working on weekends ?

Customer service representatives are available Monday through Friday, 7 a.m. to 7 p.m. local time, unless otherwise noted. Residents of Alaska and Hawaii follow Pacific time. Puerto Rico phone lines are open 8 a.m. to 8 p.m. local time.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*