The system time has changed - Kernel-General Event ID 1

Having an issue with by Windows 7 Ultimate - 64 Bit. All maintenance applied except for May updates.

It looks like every time my machine awakens from sleep I get and informational event generated in by Systems logs. The source is Kernel-General with and Event Id 1

The details are "The system time has changed to xxxxxxxx from yyyyyyyy

One example logged at 8:09am DST, The system time has changed to 2019-05-29T12:09:33.5000000Z from 2019-05-29T02:29:50.854422100Z

Some go forward, some go backwards.

I setting time to time.windows.com The correct timezone is selected.

Last night by system was schedule to run a backup with Macrium at 2:00am to a NAS. It didn't BSOD but something went wrong and system restarted. The first event on awaking was this time change. Then it tries to fall asleep.

Should the time in the events logs be my local time or is this GMT?

All time clocks are based on GMT time.
Windows (time.windows.com) get the GMT time and modifies regarding the time zone and local DST.

I can see that you have a i7-2600k so it was probably built in 2011 (8 years old). Did you ever changed the CMOS battery (CR2032)?
Download HWiNFO Portable. It doesn't need to install.
Unzip, and run HWiNFO64.exe
Under sensors (right column) you will see VBAT (should be a little higher than 3 V)

Thanks I will do that. Simple way to check.

I will mention I went to NAS and checked it's time. It was off. I set for right timezone and time updated correctly on NAS.

So I ran. I assume this VBAT would be under ASUS MB sensors. Not listed. Scanned list several times.

Have to go out. Will check back later. Still can't find VBAT in entire list.

On top, under Monitoring you have a thermometer (Sensors). Once you click on it it will open a sensors window.
On the right, in yellow, you will see the VBAT.

Must be motherboard based sensors. I thought you meant motherboard.


Booted to BIOS. Time is off a couple of seconds so not a BIOS time issue.

I will have to do a deeper dive. I wondering if me waking system is causing system time to be updated and while I said I saw events where it went backwards can I find recent examples.

So I left are 12:49pm my time and I started computer at 17:40. If I look at the most recent time change that is roughly what log has only it is four hours ahead, so I shut down around 16:50:01 and awoke 21:40 and this event is the system time being updated.

So this is just clock adjusting to time slept. My windows 10 system does not report this way. Time is changed but only a minute in any event and they both went to sleep together.

So likely my Win 7 has issue unless others see the time catching up in there event logs.

At the end of the day, shutdown the computer.
Next morning, before entering windows, enter BIOS and check the time and date. If it's wrong, your computer needs a new CR2032 coin battery. If the NAS is also old, it probably needs a new battery too.

Okay, I'll give it a try. The battery has been replaced, can't remember when. Bought a couple yesterday. NAS is four months old.

So it is not battery. Shut off at 9:00 pm yesterday. Started computer up and went straight to BIOS. Time is being kept very accurately.

Of note there was not major time event in log, which makes sense as the OS was shutdown.

Interesting that during sleep, not hibernation, sleep, the OS pauses time and then catches up on the next awakening.