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Laptop Clock loses time

Hi, My time clock is constantly losing the right time. I set it up and after a few hours it begins to lose its accuracy. Please help. (It's a Fujitsu Simens Amilo). Thanks. Dino

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Re: Laptop Clock loses time

This is a sure sign that your CMOS battery needs replacing, but you may need to take to a qualified repairer as the battery can be hard to access or even locate.

Posted on Dec 16, 2006

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Why is my toshiba Satellite P-850 clock loosing time

It *might* be
- that the "CMOS battery" (normally a coin cell about 13mm in diameter) is dead, in which case you should replace it.
- The crystal which stabilizes the RTC has drifted.
- If this problem has always occurred it may be the that the RTC chip is defective, but this is highly unlikely, and even less likely to have developed a fault with time.
- if you connect to the internet frequently (several times per day) the above can be ruled out (I think).

See for example (just one of thousands)

Search the internet on terms similar to "real time clock in pc loses time" for more ideas


Jul 28, 2014 | Toshiba Satellite PC Laptops

1 Answer

My clock is losing time

double click the time at the bottom right corner click on change date and time settings then click the internet time tab at the top then press the change settings button then uncheck the sync with internet time

Sep 09, 2011 | Toshiba Satellite A105 Notebook

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The clock on the laptop does not keep the right

Why does the clock on my laptop keep incorrect time? Your laptop has two or more clocks, and FreeBSD has chosen to use the wrong one.
Run dmesg(8), and check for lines that contain Timecounter. The last line printed is the one that FreeBSD chose, and will almost certainly be TSC.
# dmesg | grep Timecounter
Timecounter "i8254" frequency 1193182 Hz
Timecounter "TSC" frequency 595573479 Hz
You can confirm this by checking the kern.timecounter.hardware sysctl(3).
# sysctl kern.timecounter.hardware
kern.timecounter.hardware: TSC
The BIOS may modify the TSC clock--perhaps to change the speed of the processor when running from batteries, or going into a power saving mode, but FreeBSD is unaware of these adjustments, and appears to gain or lose time.
In this example, the i8254 clock is also available, and can be selected by writing its name to the kern.timecounter.hardware sysctl(3).
# sysctl -w kern.timecounter.hardware=i8254
kern.timecounter.hardware: TSC -> i8254
Your laptop should now start keeping more accurate time.
To have this change automatically run at boot time, add the following line to /etc/sysctl.conf.


Take it back to the place where you purchased it and explain the
situation to them as it is still under warranty.

Jun 04, 2010 | HP Pavilion ze2000 Notebook

1 Answer

The Toshiba Tecra A8 S8413 laptop cmos battery (or capacitor?) does not seem to be working. Symptoms: I set the date and time. As long as the laptop does not sleep or go into power save mode the clock...

The RTC (Real Time Clock) battery charges when the computer in on (operating). You can plug the electrical cord in and let the computer run for 24 hours by temporarily suspending any sleep mode or automatic power saving features. This should sufficiently charge the RTC battery.

Nov 30, 2009 | Toshiba Tecra A8-S8513 Notebook

2 Answers

Laptop's clock runs slow.

A near flat battery will cause the laptop to lose the time and date even if you change the BISO time and date, it will still lose time.
To get into the BIOS setup press F2 as you boot up the laptop.
Check the various settings and you will get to the time and date setting, follow the screen instructions to set the time and date.
I suggest you get a new battery installed before you change the time and date.

Mar 16, 2009 | Toshiba Satellite A105-S2031 Notebook

2 Answers

Cllock does'nt time when shut down ?

Most probably your CMOS battery needs replacing.

Jan 06, 2009 | Averatec 3200 Notebook

1 Answer

Clock losing time

I had this problem too but i solved it by installing a professional version of the same operating sisitem

Dec 27, 2008 | Acer Aspire 5500 5570-2609 Laptop

2 Answers

Time or Clock changes

check with antivirus software. same problem came again battery only problem!

Jul 01, 2008 | IBM ThinkPad T43 Notebook

2 Answers

Computer clock

Not sure if this will help as my previous experience is that the clock starts at 12:00 each time it is started up.

In my case it was a flat computer battery that keeps the BIOS active when shut down, hence it was losing all it's settings each time it was shut down.

Note: This does not explain the looping, so this answer may be one "just to try" if no other answers come up.

Apr 07, 2008 | Compaq Presario 700 470024-192 Notebook

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