does bios time get updated accordingly with os time update?

Discussion in 'other software & services' started by imdb, Dec 1, 2011.

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  1. imdb

    imdb Registered Member

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    hi, when you synchronize system time with "time.windows.com" server, does this also change bios time?
    regards
     
    Last edited: Dec 1, 2011
  2. MrBrian

    MrBrian Registered Member

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    yes it should
     
  3. Raza0007

    Raza0007 Registered Member

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    I always thought that it was the OS clock that synced itself with the BIOS clock and not the other way around.
     
  4. HKEY1952

    HKEY1952 Registered Member

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    YES

    The Actual Time Of The Computer Is The Basic Input Output System (BIOS) Time.

    The Desktop Clock is only an 'Display' of the computer time and does not reflect the actual time on the computer.
    The internal clock in the BIOS of the computer must be 'Disciplined' over and slow process of elapsed time referred
    to as 'Clock Discipline' and uses an complex suite of algorithms that are defined by the Network Time Protocol (NTP)
    Specifications ensuring that computer clocks throughout an network are as accurate as possible.

    Microsoft TechNet - How the Windows Time Service Works:
    http://technet.microsoft.com/en-us/library/cc773013(WS.10).aspx


    HKEY1952
     
  5. HKEY1952

    HKEY1952 Registered Member

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    This is what I use for My Time Tool

    Atomic Clock Sync v3.0 by WorldTimeServer.com
    http://www.worldtimeserver.com/atomic-clock/

    Free, Digitally Signed (Tuesday, May 26, 2009 4:33:24 PM) and McAfee Online SiteAdvisor Safe
    No Installation Required.


    McAfee Online SiteAdvisor for worldtimeserver.com
    http://www.siteadvisor.com/sites/worldtimeserver.com


    HKEY1952
     
  6. imdb

    imdb Registered Member

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    thanks guys. especially hkey1952.
     
  7. mantra

    mantra Registered Member

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    very cool program

    i used eToolz to sync and other nice feature


    but can somebody tell me why xp is so slow to sync time?
    if i double click on the clock , and in the tab sync i click refresh or update system time windows xp keeps few seconds (6 or 7 seconds i guess)

    with eToolz is instantaneous
     
    Last edited: Feb 16, 2012
  8. MikeBCda

    MikeBCda Registered Member

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    I use SPTimeSync (freeware, from snapfiles.com) for periodic adjustment, since my system seems to gain about a minute a month. One nice feature is that when you "get time from server", it displays your system time, the server's time, and the difference between the two. Also the transmission time back and forth (essentially a ping), in case that's significant. You can then choose whether or not to adjust your system time to match, depending on how big the difference is and how critical absolute accuracy is to you.

    (Edit) It's quite quick, on my antique system, for both steps, close enough to instantaneous.
     
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