Actually, we had a dry run to experiment with the process, and within 20 minutes we were able to bring the Black Rod to the House of Commons and send over to the Senate the contingent from the House that would be part of a royal assent ceremony. We presume that process would be followed for the Speech from the Throne, although we would expect that there would be higher participation on the part of the members.
On February 19th, 2019. See this statement in context.