My date and time settings go off whack when I put my G5 into sleep mode overnight. I'll wake it up and the date is usually some random day in April, 2038. Sometimes, the time reflects the last time I put my computer to sleep.
Yes, I've changed the battery, reset the PRAM, and the SMU button. Not sure why it's doing this. Doesn't happen when I shut the computer down. Only when it sleeps. I have a G5 (Late 2005). Run 10.4.8 OS.
Any advice you can give is much appreciated. Resetting the date and time each time I wake the computer up is a tiny hassle, but hassle none the less.
First update your OS (10.4.9 is out) if the issue still persists, reset the PMU (Power Management Unit), if that douse not work then boot from a known good system. If you have the same problem booted from a known good system, then it is something hardware, if it acts normal booted from a known good system, then it is software, most likely something screwy with the OS. I would then reinstall your OS.
Check thetime and date system preferences. You can set the clock to automatically sync itself to an external source on the internet. I don't know...perhaps it's set to something wrong and kees re-syncing to that?
If it's off you should turn it out. That's not an actual fix but it might help by re-syncing your clock every time it gets off.