We want to know when Joanna’s muon left Vancouver. Since teleportation is instantaneous, it leaves at 2AM Toronto time as well as arriving. There are 2 things we must account for. 1, Vancouver time is normally 3 hours behind Toronto time, which brings us to 2, Vancouver would not yet have moved the clocks forward to daylight savings. This makes Vancouver 4 hours behind Toronto. Our answer is thus that Joanna’s muon teleported from Vancouver to Toronto at 10PM Vancouver time, just before daylight savings.