Exeter's loss of their Premier League Darts date is very much to the gain of Rotterdam, who will host back-to-back nights of action on Wednesday April 18 and Thursday April 19.
The season's fifth league night, planned for Westpoint Exeter on Thursday March 1, had to be cancelled following heavy snow across the UK and Storm Emma.
Those planned fixtures have been moved to night 10 at Liverpool's Echo Arena on April 5 (click here for full season fixtures, dates, results & table), which will now become Judgement Night as the bottom two players in the league table are eliminated.
To restore a sixth league night following Judgement Night, ahead of May's Play-Offs, the visit to Rotterdam Ahoy will now see a double-header take place.
Five fixtures will be held on Wednesday April 18 to precede the sold-out planned league night on Thursday April 19.
"It was hugely disappointing that last week's planned Unibet Premier League in Exeter had to be cancelled," said PDC Chairman Barry Hearn.
"We looked at various options, alongside our host broadcast partners Sky Sports, which would see the Unibet Premier League remain a 16-night season, and it's great that we've been able to add a second night at Rotterdam Ahoy.
"Tickets in Rotterdam have been incredibly popular since we first took the Premier League to the Netherlands in 2016, and this is another great chance for Dutch fans to see the world's best players live."
Tickets will be priced at €56 for Front Tables, €49 for Rear Tables and €31 for Tiered Seating, and will go on sale at 10am GMT (11am Dutch time) on Friday March 9.
Tickets will be available through www.ticketmaster.nl and 0900 300 1250 (Netherlands, 60 cpm) or 0031 88 123 24 25 (Outside Netherlands).
Fixtures for the two league nights at Rotterdam Ahoy will be confirmed following Judgement Night.