I can’t find this verified online, but Eric and Kathy on the Mix didn’t steer me wrong last year, and I’m guessing their sources are correct this year as well.

The promotion will run from 11 a.m. – 3 p.m.

The stores participating in this promotion were a mad-house last year during the lunch rush, so we recommend planning your lunch a little earlier or later than usual if you plan on picking up a $1 sub!  {Also, we always recommend calling ahead just to confirm that your local joint is participating.}