The Leinster match will now be played on Friday 22 October at 7.35pm, giving the club its first Friday night game of the 2021/22 season. With this game already on sale, all ticket purchasers who are unable to attend due to the change of date, are entitled to a refund and have been contacted directly.
Meanwhile, the Dragons fixture will move to later in the day on Saturday 4 December. It will now be played at 7.35pm.
Glasgow Warriors Managing Director, Alastair Kellock, said: "Thank you to the United Rugby Championship, the broadcasters and clubs who have made these fixture changes possible. With these changes we can now offer our supporters a Friday night game in the opening rounds of the league - which will be a welcome addition to our schedule."
Round one to ten URC fixture updates
Round five: Glasgow Warriors v Leinster, Friday 22 October at 7.35pm (live on Premier Sports & TG4)
Round seven: Glasgow Warriors v Dragons, Saturday 4 December at 7.35pm (live on Premier Sports)