[Linux-aus] Dual-booting Win*/*nix with UTC BIOS Clock

Michael Still mikal at stillhq.com
Sat Nov 16 14:59:24 EST 2013

On Sun, Nov 17, 2013 at 1:42 AM, Peter Lawler <linux-aus at bleeter.id.au> wrote:

> Last time I looked, I recall MS had decided on insisting system clocks
> be in local time. It certainly explains why Win* boots in one time zone,
> the same as it logs in as, but then flips '($X*$Y) / ($moon phase^2)'
> seconds after loading the desktop.

I know this was an issue for Windows VMs running on OpenStack until
recently... The symptom was dhcp leases acting in an unexpected
manner. We had to put a work around in to set the BIOS clock to local
time for Windows instances.

The Microsoft tech note I read at the time insisted that UTC BIOSes
were a bad idea.

So there you go, I think you're stuck.


Rackspace Australia

More information about the linux-aus mailing list