Yep. I'm on the West Coast, too, and I usually add a statement in the problem disclosure tap to remind the editing team about the time difference.
OTOH, I am grateful that ACL changed many of its reporting deadlines from 12 hours (before Clarity) to 24 hours. I've had ACL folks tell me that the deadline for a shop was really 24 hours even though the guidelines still said 12 hours.