Or, alternatively: ;setdate in the search bar? (feed it an epoch)
.
(I mean, I'm a fan of doing insanely complicated shit to fix a simple issue, but in this case, eh ;D).
(I'm *pretty* sure setdate was already here on FW 2.x. My K2 is flat, so I can't check right now. And since it going flat does reliably wreck the clock, I know that the setdate *script* exists, because that's how I usually fix it over SSH. But if the script is there, there's a fairly good chance the search command is, too).