Let's do the time warp again!
For the record, Daylight Savings Time does not apply in Japan. You shifted, I didn't. That means you need to take whatever your previous perception of the time difference was and subtract an hour. Or maybe add one. No, I think it's subtract... *fumes* ...well, I have it on good authority that it's 10am Monday here and 5pm Sunday on the West Coast, so just work from there.