This is what happen to me this morning:
Normally I get up at 7:10 AM which the Roku then Plays my favorite DI.FM station. This morning I woke up just because it was so bright today. So I decide hmm, why is it so bright outside. I checked the Roku and it said its 1:33 AM. From there I knew something wasnt right so I checked the clock on the Tivo/Cell Phone and they said 8:20 AM. The Roku failed for the 1st time in 1 year to wake me up.
I can only chime in with a "me too" response, but I'd like to provide some additional information since it just happened to me on the morning of January 15, 2008. This is the third time this has happened to me. (I've had the device since they were first introduced.)
Every time this has happened, the clock essentially stops functioning sometime during the middle of the night. Everything else functions on the Radio. A simple reboot seems to resolve the problem (except this last time, see below) but since it is impossible to predict, I am left wondering if I should occasionally reboot. But I eventually become complacent and don't.
This last time I had alarms set for 6:30 AM and 7:00 AM. I woke up and checked the time around 6:55-ish and noticed the clock said 11:58 (or something.. didn't really make note of the exact time). I immediately woke up my wife and rebooted the Radio. But the 7 AM alarm didn't go off either. I simply thought that maybe I didn't reboot in time, so I dismissed it. But to make sure everything was working, I set the 7 AM alarm to 7:15 AM. Sure enough, at 7:15, the alarm went off.
This morning, the 6:30 alarm didn't go off, even though the clock was apparently functioning. (I checked the clock at 6:40. And yes, both alarms were set, and the indicators were showing on the display.) So I'm convinced the Radio really did fail for the 7:00 AM alarm the day before as well. Resetting the 6:30 alarm to 6:45 resolved the problem, and the alarms at 6:45 and 7:15 both went off as scheduled.
Long story short: In the past, I've never had to "reset" the alarms, but just reboot the radio. This time, I've also had to reset BOTH alarms, even though both were set to "on" before and after the reboot. It's possible that I changed alarms in the past (e.g. it might have been a weekend) and unknowingly avoided the issue.
But you have been warned! You can't even trust the display.
I guess I'll find out tomorrow if I'm back to normal.