Munster will play Stade Francais on Saturday January 9th, while Ulster will travel to play Oyonnax the following day in the fixtures rescheduled following postponement due to Paris attacks.
Munster’s clash at the Stade Jean Bouin will kick off at 5.45 live on Sky Sports, with Ulster’s game at 2.0 the following day, also live on Sky Sports.
Of the five Champions Cup games which were postponed due to last month's attacks, Bordeaux-Bègles and ASM Clermont Auvergne will be the first into action when the TOP 14 rivals meet at Stade Chaban-Delmas in Pool 2 on Friday January 8th.
The revised schedule means that the Pro12 fixtures of Ulster v Newport Gwent Dragons, Zebre v Glasgow Warriors, and Cardiff Blues v Munster will take place later in the season.
Munster currently sit second in Pool 4, five points behind Leicester Tigers who they play in a vital match this Saturday.
Meanwhile Ulster were comprehensively beaten by Saracens in their opening Pool 1 fixture and go into Friday evening’s tie with Toulouse in bad need of a result.