Many of my users are too lazy (or ignorant) to set their timezone. I was playing with HiveMail's demo, and I saw that it detects any difference in timezone between the server and user and checks to make sure the offset is correct. If it isn't, it asks if they want to update it and automatically adjusts it accordingly. Here's the JS I grabbed off HiveMail:
Code:
<Part of Hivemail code removed until permission from Chen obtained>
Now...I'm sure you knew where I was going with this. It would be AWESOME if vBulletin could detect this the same way! I'm just not quite sophisticated enough to do it myself. Is anyone up to the challenge?