Celtic and Rangers have both had fixtures rescheduled after the SFA delayed Scottish Cup ties.
The governing body rearranged several Premiership fixtures to make use of a free weekend of scheduling that is no longer needed for cup matches.
February 20 and 21 will now be used for games that were originally written in for April 3 in 3pm kick-offs.
Rangers will now host Dundee United on Sunday, February 21 in a 3pm kick-off while Celtic have to contend with a 7.30pm kick-off away to Ross County on the same day. The Hoops’ trip to the Staggies will also be broadcast live on Sky Sports.
Other games which have been rescheduled include Aberdeen vs Kilmarnock, Hibs vs Hamilton, Motherwell vs St Johnston and St Mirren vs Livingston.
These matches have been moved from April 3 to Saturday, February 20.