It is way too early in the morning to be conscious. But a 7:30am flight means a 5am wake-up. I think, given the time-changes, I'll not have coffee now, try to sleep across Canada, then stay awake across the Pacific. We'll see how that works.
I've made it to YVR, and gotten some Korean Won. The exchange is going to be easy to figure on the prices -- about 1000 won/dollar. Now, waiting for stage 2.
I did manage to nap much of the trip here, so now I start the coffee and figure on staying awake until settled in Dongchan.