Ireland will play Australia, Japan and New Zealand next summer in rugby's new-look Nations Championship, while November will see Tests against Argentina, Fiji and South Africa before a finals weekend in London.
Next July Andy Farrell's side will play the Wallabies and Japan in Australia before travelling to New Zealand with venues still to be confirmed.
The Pumas, Fiji and the Springboks, will face Ireland in Dublin during the autumn window.
A finals weekend featuring all the teams will take place in London on the weekend starting Friday 27th November.
Details of the new tournament were announced on Monday with northern and southern hemisphere countries pitted against each other in two separate windows in non-World Cup and non-British and Irish Lions tour years.
The long-anticipated announcement has come three years after the competition was first mooted to replace the traditional mid-year tours that northern hemisphere teams make to countries in the south and then the other way round in November.
The new competition, designed to give more purpose to the Test schedule, will conclude with a finals weekend from 28-30 November at Twickenham in London where all 12 nations will chase a placing.
The deciding clash will be between the top-ranked northern and southern hemisphere sides.
Watch Ireland v South Africa in the Quilter Nations Series on Saturday from 4.30pm on RTÉ2 and the RTÉ Player. Follow a live blog on the RTÉ News App and on rte.ie/sport. Listen to live commentary on RTÉ Radio 1
