The Scottish Cup showdown between Rangers and Celtic has been pushed back to Sunday, April 18.
The fourth round tie was due to be played at 4pm on Saturday, April 17 , with live coverage on Premier Sports.
After the Royal Family announced that the funeral of Prince Philip would be held at 3pm that day though, organisers were forced into a rethink.
The SFA confirmed on Saturday they'd hold talks with stakeholders about the best way to proceed.
And the governing body has now announced that Rangers vs Celtic will be played on Sunday, April 18, with kick-off at 3pm.
A statement said: "In cognisance of the funeral ceremony of HRH Prince Philip this Saturday, 17 April, the Scottish FA can now confirm revised kick-off times for the weekend’s Scottish Cup fourth-round ties.
"These amendments have been made in consultation with broadcast partners, relevant government officials, Police Scotland and participating clubs.
"St. Mirren versus Inverness Caledonian will be the first fixture of the Fourth Round to be played and will kick-off at 6pm on Friday night. Motherwell versus Greenock Morton will take place an hour later, at 7pm.
"Forfar Athletic versus Dundee United remains unchanged and will be broadcast live by BBC Scotland on Friday at 7.45pm.
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"Kilmarnock versus Montrose will kick-off at 11.45am on Saturday, to ensure any extra time and penalties do not overlap with the Duke of Edinburgh’s funeral ceremony.
"To that end, BBC One’s live broadcast of Stranraer versus Hibernian has been switched from 12.15pm on Saturday to 12.15pm on Sunday.
"Rangers v Celtic, originally scheduled for 4pm on Saturday live on Premier Sports, has been rescheduled for 3pm on Sunday.
"Premier Sports’ other live match, Aberdeen versus Livingston, has been brought forward from 2pm on Sunday to Saturday at 5.30pm. That match will kick-off at the same time as St Johnstone versus Clyde.There are five other ties that day, which were due to kick-off at 3pm, and they have also been moved."
Below is the new schedule in full.
Friday, 16 April
St. Mirren v Inverness Caledonian Thistle; kick-off 6pm
Motherwell v Greenock Morton; kick-off 7pm
Forfar Athletic v Dundee United; kick-off 7.45pm (live on BBC Scotland)
Saturday, 17 April
Kilmarnock v Montrose; kick-off 11.45am
St. Johnstone v Clyde; kick-off 5.30pm
Aberdeen v Livingston; kick-off 5.30pm (live on Premier Sports)
Sunday, 18 April
Stranraer v Hibernian; kick-off 12.15pm (live on BBC One)
Rangers v Celtic; kick-off 3pm (live on Premier Sports)