[ntpwg] Time synchronization and the Energy Policy Act of 2005

[Danny Mayer]

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.
>>
>> Danny
> 
> 	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.

Danny