date/time properties

Sure sounds like it. When the OS comes up, it grabs the date/time from the BIOS, so if your board system clock is not running, then this problem could happen.
Try booting up your system and go into the BIOS, and check its date/time settings. If they are reset there, then I would definately get a new battery.

hope this helps

Agree with first answer, also if the battery gets lower you'll lose all the settings in the BIOS.

This is an easy cheap fix and the batteries can be picked up at Walgreens. Most computers use part number 2032.

One more thing to consider before changing the battery. Is this PC on a network? If it is, it could be getting the time from the server.

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