[There is a pause as Sokka tries to process this. How can Aang be- why would he- year ago- how is that-

Sokka takes a deep breath and forges ahead.]

... when you say a year ago, you mean a full twelfth months? Like, Sozin's comet has come and gone, peace is restored, Zuko gets a fancy thing to put in his hair, and why is there problems with the colonies?