Need your Ubuntu clock to stay in sync with a dual-boot Windows install? It seems to have changed over the years, and google wasn't finding any pages for me offering suggestions that still worked.
Turns out, in Ubuntu Oneiric Ocelot,
it's controlled by the file /etc/default/rcS: set
Apparently it's also possible to get Windows to understand a UTC system clock using a registry tweak.
Ironically, that page, which I found by searching for
windows system clock utc, also has the answer for setting
Ubuntu to local time. So if I'd searched for Windows in the first
place, I wouldn't have had to puzzle out the Ubuntu solution myself.