From: francociccio on
Hi to all. I have a problem and i cannot find a solution. I have a PC
that have a strange behavior.
Its system time is extremely fast (gains about 2 minutes every half
hour). This effect is automatically adjusted in a very trivial way,
that is extemely dangerous for some software i'm writing.

- No internet connection is available, so no time server is working.
- If i keep PC off (even for weeks) when i turn it on the system time
is quite precise, maybe it is and hw adjustment?

Is there someone that had the a similar problem? Is there a solution?
(time drift is acceptable for me, but i cannot admit the 2 minute back
auto adjustment every half hour)
From: francociccio on
On 26 Feb, 12:14, francociccio <marco.bo...(a)gmail.com> wrote:
> Hi to all. I have a problem and i cannot find a solution. I have a PC
> that have a strange behavior.
> Its system time is extremely fast (gains about 2 minutes every half
> hour). This effect is automatically adjusted in a very trivial way,
> that is extemely dangerous for some software i'm writing.
>
> - No internet connection is available, so no time server is working.
> - If i keep PC off (even for weeks) when i turn it on the system time
> is quite precise, maybe it is and hw adjustment?
>
> Is there someone that  had the a similar problem? Is there a solution?
> (time drift is acceptable for me, but i cannot admit the 2 minute back
> auto adjustment every half hour)

A little update. This behavior is observed only on windows. On linux
system time is precise, and even in bios it works well
From: John Wunderlich on
francociccio <marco.bossi(a)gmail.com> wrote in
news:cd96f13f-622e-4fee-ab4c-ca3f206815e3(a)v13g2000yqv.googlegroups.co
m:

> On 26 Feb, 12:14, francociccio <marco.bo...(a)gmail.com> wrote:
>> Hi to all. I have a problem and i cannot find a solution. I have
>> a PC that have a strange behavior.
>> Its system time is extremely fast (gains about 2 minutes every
>> half hour). This effect is automatically adjusted in a very
>> trivial way, that is extemely dangerous for some software i'm
>> writing.
>>
>> - No internet connection is available, so no time server is
>> working. - If i keep PC off (even for weeks) when i turn it on
>> the system time is quite precise, maybe it is and hw adjustment?
>>
>> Is there someone that �had the a similar problem? Is there a
>> solution? (time drift is acceptable for me, but i cannot admit
>> the 2 minute back auto adjustment every half hour)
>
> A little update. This behavior is observed only on windows. On
> linux system time is precise, and even in bios it works well

Just a guess here. The Windows Time Service will attempt to keep time
to a network time source. When it sees that the time is off, it can
speed up or slow down the clock until it catches up with real time.
It's possible that at sometime in the past you had an internet
connection that detected that you were way behind real time and the
service sped up the time to catch up. If it was never reconnected to
the network to stabilize this correction it may still be in force.

Since you are not connected to the network, try stopping the Windows
Time service. Probably the best way is to bring up a command window
and enter the command:
w32tm /unregister
which should, according to the description, remove all configuration
information from the registry.

HTH,
John

From: John Wunderlich on
John Wunderlich <jwunderlich(a)lycos.com> wrote in
news:Xns9D2B84D934E25wunderpsdrscray(a)138.125.254.103:

> francociccio <marco.bossi(a)gmail.com> wrote in
> news:cd96f13f-622e-4fee-ab4c-ca3f206815e3(a)v13g2000yqv.googlegroups.
> co m:
>
>> On 26 Feb, 12:14, francociccio <marco.bo...(a)gmail.com> wrote:
>>> Hi to all. I have a problem and i cannot find a solution. I have
>>> a PC that have a strange behavior.
>>> Its system time is extremely fast (gains about 2 minutes every
>>> half hour). This effect is automatically adjusted in a very
>>> trivial way, that is extemely dangerous for some software i'm
>>> writing.
>>>
>>> - No internet connection is available, so no time server is
>>> working. - If i keep PC off (even for weeks) when i turn it on
>>> the system time is quite precise, maybe it is and hw adjustment?
>>>
>>> Is there someone that �had the a similar problem? Is there a
>>> solution? (time drift is acceptable for me, but i cannot admit
>>> the 2 minute back auto adjustment every half hour)
>>
>> A little update. This behavior is observed only on windows. On
>> linux system time is precise, and even in bios it works well
>
> Just a guess here. The Windows Time Service will attempt to keep
> time to a network time source. When it sees that the time is off,
> it can speed up or slow down the clock until it catches up with
> real time. It's possible that at sometime in the past you had an
> internet connection that detected that you were way behind real
> time and the service sped up the time to catch up. If it was
> never reconnected to the network to stabilize this correction it
> may still be in force.
>
> Since you are not connected to the network, try stopping the
> Windows Time service. Probably the best way is to bring up a
> command window and enter the command:
> w32tm /unregister
> which should, according to the description, remove all
> configuration information from the registry.
>
> HTH,
> John
>
>

Just a little something to back up that hunch:

"How to Fix Time Error"
<http://support.microsoft.com/kb/555584>

HTH,
John