Windows7 appears to behaving like a time machine???

ultralight_60

Honorable
Sep 13, 2012
5
0
10,510
Hi

I have my PC running Windows7 Home Edition, the PC also has factory fitted the Norton anti virus package which is active. The PC is also running a weather station via Cumulus Software to weatherunderground. The PC has to run 24/7 (advice from tom's hardware has helped with the 24/7 set up - many thanks).

However a few times the station has gone off line, up on inspection I have found that the PC clock - as displayed bottom right - has advanced its self by 12 hours. The last time this happened was Friday 28 Sept. The weather base station showed 16:45, the Cumulus display on the desk top showed 16:45 but the PC clock showed 29 Sept 04:45, 12 hours in advance. Similar time slips both forwards and backwards have happened. Each time I have reset the PC clock on 'Adjust Time/Date and all clocks are at the right time allowing data to be transmitted / received and all seems to be OK for anything up to a week. Any ideas out there???