Holders Birmingham Bears will face Northants Steelbacks in the semi-finals of the T20 Blast at Edgbaston.
The other semi-final sees Lancashire Lightning and Hampshire meet in a repeat of last year's Finals Day.
Both matches will be played on Saturday, 29 August before the final the same evening.
Northants and Birmingham will play first from 11:00 BST before Hampshire and Lancashire play from 14:30, with the final from 18:45.
Hampshire have reached Finals Day for a sixth consecutive year while Birmingham will look to be the first county to successfully defend the title.