When I upload a new image, the blog's Assets control panel says that the blog was uploaded "59 minutes from now".

That sounds like a time zone problem due to Daylight Savings Time vs. normal time. However, I would expect the times of posts to be incorrect, too. A new posts' date is correct, and not off by an hour.

I thought this might be related to my problem of the image not showing up. However, you'd expect the image would show up after the supposed-upload-time (59 minutes from now) passed. That hasn't happened.

So: looks like a bug and acts like a bug. I'd love to hear I'm wrong, though, in which case please tell me what I should be doing differently.

I'm using Movable Type Pro version 4.21-en with: Community Pack 1.6, Professional Pack 1.2