The final Dundee derby of the season will be played on a Friday night.
It is one of three of the Tangerines’ fixtures to be moved back a day in order to be broadcast live on the BBC Scotland TV channel.
The clash against Dundee at Dens Park will now go ahead on Friday, April 24.
Also, Robbie Neilson’s men will face Queen of the South at Tannadice on April 3 and Inverness Caley Thistle away on April 10 – both Fridays.
All three games will kick off at 7.05 pm.