The last four tie between Dundee United and Hibs will take place on Saturday, May 8 with a 4pm kick-off and will be broadcast live on subscription channel Premier Sports.
The game is a repeat of the 2016 semi-final which Hibs won via a penalty shoot-out after a goalless draw, en route to winning the final against Rangers to claim the cup for the first time in 114 years.
The other semi-final encounter between St Mirren and St Johnstone takes place the following day, Sunday, May 9, with a 2.15pm start and will be shown on both BBC One Scotland and Premier Sports.
With Rangers and Celtic out of the competition, all four clubs will fancy their chances of going all the way in this year’s tournament, with the Scottish Cup winners also guaranteed European group stage football until Christmas.
The final is scheduled for Saturday, May 22.