I'm pretty sure that something is off with the time conversion utility when you hover over a post/comment's "X minutes ago" timestamp field. Seriously, go hover over your recent comment and see what time it says you posted it.

Example:

I'm in PST timezone, and it's 2:54 pm (14:54) right now.

I created a draft blog post and hovered over its timestamp field with "a moment ago" in it. Here is what I see: