Time Keeps Changing

You may need a new bios battery. That happened to me, and not only was the time flukey, but I kept getting messages that many of my subscriptions were out of date, because the timing was going bananas.

It's a cheap fix, as the battery is simply one of those round ones, like are in watches, only larger. Check your computer manual for the correct one.

Possibly you need to adjust the time zone.

Double-click on the clock, select the Time Zone tab.