[ntpwg] Time synchronization and the Energy Policy Act of 2005
mayer at ntp.isc.org
Fri Oct 20 11:47:16 UTC 2006
Mark Andrews wrote:
>> Brad Knowles wrote:
>>> At 9:44 AM +1000 10/20/06, Mark Andrews wrote:
>>>> What would really help would be for these OS's to also
>>>> support running with the hardware clock set to UTC.
>>> I have never encountered an OS that doesn't allow me to set the clock to
>>> UTC. Do any such OSes actually exist?
>> Yep. VMS was one. I don't know about now. Twice a year I would run a
>> batch job to change the time by an hour.
>> It really doesn't matter what the hardware clock uses as long as the
>> time format in NTP packets is UTC.
> AFAIK Windows still only supports the hardware clock set
> to wall clock time.
Maybe, but the API's use UTC. See SetSystemTime() for example where the
single argument is a structure containing a UTC time. Windows follows
Unix in this respect.
More information about the ntpwg