This story is set after the interviews with Caesar Flickerman in Catching fire. Snow has delayed the games so that the capital can get a little more fun out of Katniss and Peeta's relationship and can meet the baby that Snow knows is not there.
This story is set after the main events of Reminiscence (a fanfiction by IWillBelieveIt based on the ending of Veronica Roth's last contribution to the Divergent series) chapters 1 is set a week before the epilogue (sorry I couldn't help myself) but the other chapters are set 5 months after it.