Windows 8 and 8.1 Forums


Computer Wakes at 3:14 AM to Sync Hardware Clock

  1. #1


    Omak, WA
    Posts : 34
    Windows 8.1 64 bit

    Computer Wakes at 3:14 AM to Sync Hardware Clock


    I am tired of having a computer in my bedroom waking up sometimes multiple times in the morning hours--like approximately 3 or 4 A.M. Support people have tried to stop this operation but to no avail. It still is doing it although less frequently now. This morning at 3:14 A.M., it woke up automatically and then shut down a few minutes later.

    In Event Viewer it said at 3:14 A.M.: The system time has changed to ‎2013‎-‎10‎-‎06T10:14:28.500000000Z from ‎2013‎-‎10‎-‎06T06:11:17.671868600Z. Change Reason: System time synchronized with the hardware clock. I attached a screen shot of the info in Event Viewer, for your reference.

    Why does the computer have to do this at 3:14 A.M.? Can't this occur some other time like during the day when the computer is running? I would appreciate someone's help in resolving this problem that has been occurring for months.

    Thanks.
    Attached Thumbnails Attached Thumbnails Event Viewer of 3-6-13 in AM.JPG  

      My System SpecsSystem Spec

  2. #2


    Joisey
    Posts : 315
    Windows 8.1 consumer 64 bit


    I think this may do it:

    Go to Control Panel, Hardware and Sound, Power Options
    On the selected power plan, click "change plan settings"
    On the plan page click "Change Advanced Power Settings"
    In the resulting window, click "Sleep" to see it's options, expand "allow wake Timers", and set both to disabled.

    I have not experienced your problem, this is just a guess...
      My System SpecsSystem Spec

  3. #3


    Adelaide
    Posts : 1,338
    Windows 7 Ultimate SP1 (64 bit), Linux Mint 17.1 MATE (64 bit)

    Time Synchronization


    You should be able to reschedule Internet Time Syncing.

    1. Open the Task Scheduler
    2. Go to "Time Synchronization" (Task Scheduler > Microsoft > Windows > Time Synchronization)
    3. Right click on the Task (in the top pane) and choose "Properties"
    4. Go to the "Triggers" tab
    5. Edit the Task run time settings


    Click image for larger version

    Note:
    This is a Windows 7 screenshot.
      My System SpecsSystem Spec

  4. #4

    W8 Task Scheduler - Task Settings


    W8 Task Scheduler\Time Sync'\settings

    I don't have an answer; I do have a sense of the general direction of a solution.
    Here are some things I do know:
    > W8 includes Automatic Maintenance of several Tasks. As such, all the tasks that run in AM are interrelated in time.
    > (I do not yet have a list of the tasks included by default in W8 Automatic Maintenance. (should U-find-1, I would like to know)
    > if you have W8 on a stand-alone PC, you may find the Time Sync tasks and task "settings" are different than what one might find in W7. for example, you may find that the W8 Task Sync Folder includes two tasks, not one. In W8, some settings are hard wired.
    > IF, Time Sync is a 'Automatic Maintenance' task, it becomes more important that all the various Time Sync Task 'settings' be properly set to avoid conflict.
    > The MSDN section of MS Support has been most helpful to me.
    > Here is a link that may help you with W8 Task Scheduler and Automatic Maintenance:

    About the Task Scheduler (Windows)
      My System SpecsSystem Spec

  5. #5


    Omak, WA
    Posts : 34
    Windows 8.1 64 bit


    I will answer several who have responded.

    1. The wake timers were already disabled.

    2. Went to the area that lehnerus2000 suggested and found that the task was set to run at 3:00 p.m. everyday. So why does the computer wake up at 3:14 a.m. to sync the clock?

    3. I will check on the info at the link BigFat Boy sent.

    There should be an easy way to resolve this problem.

    Thanks.
    Attached Thumbnails Attached Thumbnails Sync Time Properties Screen Shot.JPG  
      My System SpecsSystem Spec

  6. #6


    Posts : 467
    Windows 8 Pro


    Perhaps try setting that to 6:00am and see if it starts later as a first step , my 6am maint run usually kicks in at 6:15-6:20am
      My System SpecsSystem Spec

  7. #7

    FatBoy Response #2


    obviously something is waking up your PC.
    • In Power Options\Sleep\Hibernate=NEVER ?. Unless you like Hibernation, select Never as your data entry.
    • How do you put your PC in Sleep at the end of your day? Do you use a Power Button on your case, W8 Charms\Settings\Power\Sleep . You PC might be entering something other than SLEEP state.
    • W8 Automatic Maintenance is set to start at 3:00 am. IF Time Synchronization is included in W8 AutoMaint Tasks you could change the time for AutoMain to run. Be mindful that AutMaint. tasks have conditions to meet in order to operate. Most if not all of the AutoMain tasks as set to run during "Idle Conditions".
    • IF Time Synchronization is the only task that wakes your PC from Sleep, you could temporarily Disable any and all task in the Control Panel\Admn. Tasks\Task Scheduler\Task Scheduler Library\Microsoft\Windows\Task Scheduler\Time Synchronization\ folder.

    It sounds like changing your AUTO Maintenance from 3:00AM to 'something else' and disabling any tasks in the Time Synchronization\ folder would remove your problems long enough to allow you to get some sleep.

    You can sync you PC system time clock to an Atomic Time clock manually.

    -----------------------------------------------------------------------------------------------------------------------------
    "I am tired of having a computer in my bedroom waking up sometimes multiple times in the morning hours--like approximately 3 or 4 A.M. Support people have tried to stop this operation but to no avail. It still is doing it although less frequently now. This morning at 3:14 A.M., it woke up automatically and then shut down a few minutes later.

    In Event Viewer it said at 3:14 A.M.: The system time has changed to ‎2013‎-‎10‎-‎06T10:14:28.500000000Z from ‎2013‎-‎10‎-‎06T06:11:17.671868600Z. Change Reason: System time synchronized with the hardware clock. I attached a screen shot of the info in Event Viewer, for your reference.

    Why does the computer have to do this at 3:14 A.M.? Can't this occur some other time like during the day when the computer is running? I would appreciate someone's help in resolving this problem that has been occurring for months."
    Last edited by BigFatBoy; 10 Oct 2013 at 10:01.
      My System SpecsSystem Spec

  8. #8


    Adelaide
    Posts : 1,338
    Windows 7 Ultimate SP1 (64 bit), Linux Mint 17.1 MATE (64 bit)


    Quote Originally Posted by WCarp View Post
    2. Went to the area that lehnerus2000 suggested and found that the task was set to run at 3:00 p.m. everyday. So why does the computer wake up at 3:14 a.m. to sync the clock?
    That is a good question.

    Your screenshot shows 2 Tasks.
    If you turn your PC off (or Log Off) regularly, you could disable the daily sync Task (as a workaround).

    If your PC still wakes up at 3:14 AM, you will know that some other process is responsible.
      My System SpecsSystem Spec

  9. #9


    Posts : 2,191
    Windows 8.1


    Any chance you have an RTC Alarm set to that specific time in your BIOS?

    Click image for larger version

    In any event, you might also like to try disabling the "fast startup" option in Windows 8. Believe it or not, many wake functions are tied into that option being enabled (somehow) so give that a shot if/when you run out of logical suggestions.

    Actually, I had it reversed. See my next post.
      My System SpecsSystem Spec

  10. #10


    Posts : 2,191
    Windows 8.1


    As pereviously stated, the fast startup option does have a tie-in with many RTC Alarm and wake functions but I had it reversed in my previous post. So here is the correction:

    BIOS RTC Alarm set to wake at a specific time - This generally does not work if fast startup is enabled in Windows 8 because the BIOS cannot handle the hybrid state created by fast startup enabled. This may (or may not) apply to other wake functions that are inherent to the BIOS and/or Windows 8. Anyway, you can always power down your rig completely to get a good night's sleep (like I'm going to do right now) so goodnight all!
      My System SpecsSystem Spec

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