Leinster and Ulster's Heineken Champions Cup last-16 tie will be played at the Aviva Stadium, after the EPCR confirmed the kick-off details for the eight knockout matches.The Interpro has been given the prime 5.30pm kickoff slot on Saturday 1 April, and should come close to being a 50,000 sellout at the Aviva Stadium, after 43,560 people came through the gates for Leinster's Round 4 win against Racing 92 last weekend.The game will be televised live, free to air on RTÉ.The winner of that will take on either Leicester Tigers or Edinburgh in the quarter-finals, and theirs will be the first game of the Round of 16, kicking off at 8pm on Friday 31 March.Munster are in action on Saturday 1 April, with their game against the Cell C Sharks getting underway at 12.30pm Irish time (1.30pm local) at Hollywoodbets Kings Park in Durban.And should Munster win, they will face either Toulouse or the Vodacom Bulls, who meet at 3pm (Irish time) at Le Stadium in Toulouse on Sunday 2 April.Meanwhile, Connacht's Challenge Cup last-16 tie with Benneton has been confirmed for 3pm (Irish time) on Saturday 1 April at Stadio di Monigo in Treviso.Heineken Champions Cup Last-16 (all Irish kick-off times)Friday 31 MarchLeicester Tigers v Edinburgh Rugby, Mattioli Woods Welford Road (8pm)Saturday 1 AprilCell C Sharks v Munster Rugby, Hollywoodbets Kings Park (12.30pm)DHL Stormers v Harlequins, DHL Stadium (3pm)Leinster Rugby v Ulster Rugby, Aviva Stadium (5.30pm)Stade Rochelais v Gloucester Rugby, Stade Marcel Deflandre (5.30pm)Sunday 2 AprilExeter Chiefs v Montpellier Hérault Rugby, Sandy Park (12.30pm)Saracens v Ospreys, StoneX Stadium (3pm)Stade Toulousain v Vodacom Bulls, Le Stadium (3pm)Listen to the RTÉ Rugby podcast on Apple Podcasts,