Yes daytime transpacific flights have always received this rather strange schedule. I personally understand the reason why they do it, but it just does not make sense to turn up all the flights in the middle of a flight and does a meal service, and then turn off the light for the rest of the flight. CX has tried to change its daytime meal services to such style and the feedbacks are rather bad. CX has switched it back to a more traditional lunch after takeoff and dinner prior to landing. But Korean Air sticks with this schedule. (But Asiana has the more traditional style).

I also dislike this style because F/As may be more reluctant to serve snacks after the final meal service.

Anyway, Korean Air has the service schedule published for all long haul flights, and the F/As follow it religiously.

Carfield