It's available in Communications section the Official Notice n.241 with the Primavera 1 Tim - Trofeo Giacinto Facchetti Playoff Fixtures.
First round match 1 â Thursday 6 June 2019 at 18.30 CEST in Sassuolo (Ricci Stadium)
First round match 2 â Friday 7 June 2019 at 18.30 CEST in Sassuolo (Ricci Stadium)
Semifinale A â Monday 10 June 2019 at 20.45 CEST in Parma (Tardini Stadium)
Semifinale B â Tuesday 11 June 2019 at 18.00 CEST in Sassuolo (Ricci Stadium)
Finale â Friday 14 June 2019 at 20.45 CEST (Tardini Stadium)
Source: legaseriea.it