Declan Boyle knows what time it is. It's Stanley Cup Playoff time.The young son of New Jersey Devils forward Brian Boyle crashed his dad's postgame press conference.[Tweet from @NJDevils: ���Playoffs!��� Declan Boyle steals the show at @BriBrows22���s postgame scrum! #NowWeRise pic.twitter.com/mXcjfyCoby](https://twitter.com/NJDevils/status/982074758127857665)Wearing a personalized Devils jersey with his first name across the back and his dad's No. 11, Declan proclaimed "you're in the playoffs!"The Devils posted the super-cute encounter to their Twitter account.The playoff spot comes as a happy end to a season that started with Boyle being diagnosed with leukemia. Declan Boyle was treated for[arteriovenous malformation in his jaw](https://www.nhl.com/news/new-jersey-devils-brian-boyle-cherishing-all-star-experience/c-295367200)around the NHL All-Star break.When the Devils regular season ends Saturday in Washington, even before the postseason begins,the Boyle family has plenty to celebrate.