Windows time not stable

[Raneen Dirawi]

I have windows xp professional on my laptop and the time jumbs forward ~5
minutes for ~15 seconds and then backwards. It happens a lot; once every ~55
minutes.
I have no idea why this happens! I hope you have an answer for this problem...
My time zone is Jerusalem (GMT+02:00) and the "Automatically adjust clock
for daylight saving changes" option is checked.

 

[Jonathan Boyko]

Ehlo Raneen,
Is this happening when you restart the computer, or just during work?

---
Sincerely,
Jonathan M. Boyko,
TMidEast.Com.



RR> I have windows xp professional on my laptop and the time jumbs
RR> forward ~5
RR> minutes for ~15 seconds and then backwards. It happens a lot; once
RR> every ~55
RR> minutes.
RR> I have no idea why this happens! I hope you have an answer for this
RR> problem...
RR> My time zone is Jerusalem (GMT+02:00) and the "Automatically adjust
RR> clock
RR> for daylight saving changes" option is checked.

 

[smlunatick]

I have windows xp professional on my laptop and the time jumbs forward ~5
minutes for ~15 seconds and then backwards. It happens a lot; once every ~55
minutes.
I have no idea why this happens! I hope you have an answer for this problem...
My time zone is Jerusalem (GMT+02:00) and the "Automatically adjust clock
for daylight saving changes" option is checked.

It must be noted that the "clock" in most PCs is not a "true" clock.
It is a chip that has been set up to simulate a clock. It can be
affected by several applications. Your best bet is to locate a
"better" network time sync application that will contact an Internet
time server and adjust your PC's clock more often than Microsoft's
applet.

 

[Raneen Dirawi]

Hi Jonathan,

It happens all the time during work!

 

[Jose]

Hi Jonathan,

It happens all the time during work!

If your computer is on a network, one designated server is usually the
timekeeper for all workstations.

The built in clock should try to sync with one of two servers that XP
knows about. You can see them in Start, Settings, Control Panel, Date
and Time, Internet Time tab.

One is time.nist.gov, the other is time.windows.com

Choose either one and click update now. To work, the W32tme service
must be running and your firewall must allow access to that service.

This is usually fine and syncs one a week or when you do it by hand,
or from other methods and things can be tweaked.

You should first test this process manually to be sure it works and
resolve any issues. The Application Event log will show any errors,
so if this doesn't work, expect the time to be wrong.

I like to use http://www.worldtimeserver.com/atomic-clock/

I have this for XP and two atomic wall clocks around me and they are
always in perfect sync with my XP clock.

 

[Jose]

I have windows xp professional on my laptop and the time jumbs forward ~5
minutes for ~15 seconds and then backwards. It happens a lot; once every ~55
minutes.
I have no idea why this happens! I hope you have an answer for this problem...
My time zone is Jerusalem (GMT+02:00) and the "Automatically adjust clock
for daylight saving changes" option is checked.

If once a week is not good enough, adjust the server, sync settings,
etc. here:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time
\TimeProviders\NtpClient

 

[WhiteTea77581]

If once a week is not good enough, adjust the server, sync settings,
etc. here:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time
\TimeProviders\NtpClient

Is Special Poll Interval what needs to be changed?
I had several CurrentControlSets.


Andy

 

[Jose]

Is Special Poll Interval what needs to be changed?
I had several CurrentControlSets.

Andy

I only have one CurrentControlSet, and it is the SpecialPollInterval.
The default value of 604800 seconds equals 1 week.

I do have a couple ControlSets, but only one CurrentControlSet.

 

[WhiteTea77581]

I have windows xp professional on my laptop and the time jumbs forward ~5
minutes for ~15 seconds and then backwards. It happens a lot; once every ~55
minutes.
I have no idea why this happens! I hope you have an answer for this problem...
My time zone is Jerusalem (GMT+02:00) and the "Automatically adjust clock
for daylight saving changes" option is checked.

I would recommend getting an outside program to synchronize your
clock.

The clock in the computer is quite accurate.

I use to program in assembly and as it shows below, the chip can
provide some very accurate timings.

To fix the time zone problem, I had to change to the Eastern Time Zone
instead of using the Central Time Zone
which is where I live. ??

Andy


; INT 15h, 86h (134) Wait
XT-286, AT
;
; Waits a specified number of microseconds before returning control
to
; the caller.
;
; On entry: AH 86h
; CXX Number of microseconds to elapse
;
; Returns: Carry Set if error or wait in progress,
else
; cleared
;
; Notes: This service is not available for the PC, PCjr,
and
; the XT.
;
; The real-time clock is used to count the number
of
; microseconds.
;
; The granularity of the time is 976 microseconds. (1/1000
second)
; 1,000,000 microseconds = 1 second

 

[Jose]

I would recommend getting an outside program to synchronize your
clock.

The clock in the computer is quite accurate.

I use to program in assembly and as it shows below, the chip can
provide some very accurate timings.

To fix the time zone problem, I had to change to the Eastern Time Zone
instead of using the Central Time Zone
which is where I live. ??

Andy

;  INT 15h,  86h (134)      Wait
XT-286, AT
;
;    Waits a specified number of microseconds before returning control
to
;    the caller.
;
;       On entry:      AH         86h
;                      CXX      Number of microseconds to elapse
;
;       Returns:       Carry      Set if error or wait in progress,
else
;                                 cleared
;
;       Notes:         This service is not available for the PC, PCjr,
and
;                      the XT.
;
;                      The real-time clock is used to count the number
of
;                      microseconds.
;
;      The granularity of the time is 976 microseconds. (1/1000
second)
;                    1,000,000 microseconds = 1 second

I prefer cesium to any silly onboard clocking mechanism.

A cesium based clock can maintain a time measurement accuracy of 2
nanoseconds per day or one second in 1,400,000 years. It is the most
accurate realization of a unit that mankind has yet achieved and that
is good enough for me.

 

[WhiteTea77581]

I prefer cesium to any silly onboard clocking mechanism.

A cesium based clock can maintain a time measurement accuracy of 2
nanoseconds per day or one second in 1,400,000 years.  It is the most
accurate realization of a unit that mankind has yet achieved and that
is good enough for me.

How much do they run?

Andy