Thanks for your reply, Alec! I had seen that, but I only registered formatting. I think that’s a different issue, but I get what you are suggesting and I have added %Z to all three time_format strings in config.inc.php - thanks!
Now I will revise this enhancement request to relate to the profile-based concept briefly mentioned in #3 of that topic - I don’t want to hijack that thread. There, the discussion is different strftime formats for each user; I want the same format for all users, but for the time shown to the user to be calculated with a per-user offset (e.g., Eastern Standard, Pacific Daylight) relative to the OJS/MySQL time (UTC).