Technical Trying to decipher a DOT code on a tire to see how old it is

Here's a picture of the DOT Code. Tire blew out today on a customer's car and has no idea how old they are so I'm just trying to figure out the date on them. Last two numbers are 1 and 1 which makes me think 2001 or 2011?

 

2nd week of 2011 is my understanding.

And that looks like a puncture, not a blow out.

 

^^^ tire needs to be replaced if car is being driven on the road

 

Yes it was a puncture and the tire came loose from the bead and ruined it. It's getting a new set of tires now just wondering how old these ones were

 

The three digit codes are the fun ones...on radials...being over 20 years old now, they're pretty scary!