Yep, they need to use a specific time zone for all their listed times. The military, scientists, businesses, etc. use UTC, but the average shopper on Amazon would be totally confused over that. But if Amazon stuck with PDT and made a point of reminding us that all listed times were in PDT, then many of us would figure it out. But of course many if not most would still get confused. You cannot fix stupid! But at least the info would be there for those who can figure out time zone differences.