How to make Win 11 sync time on boot


smoketoxdoc

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Windows 11
On my dual-boot PC's, when I switch from Linux (Ubuntu) to Win 11 or 10, Win always boots up to GMT time instead of US Eastern time, which is the time set in Win. i have to manually Sync now to get the correct time. How do I get the time to sync automatically? Win 10 and 11 are latest upgrades through Insider program.

Thank you,

John
 

My Computers

System One System Two

  • OS
    Windows 11
    Computer type
    Laptop
    Manufacturer/Model
    Dell Precision 7720
    Memory
    32 gb
    Graphics Card(s)
    NVidia
    Monitor(s) Displays
    built on
    Screen Resolution
    1920 x 1080
    Browser
    Chrome
  • Operating System
    Windows 11
    Computer type
    PC/Desktop
    Manufacturer/Model
    Lenovo ThinkCentre M83
There's usually a date and time setting in the BIOS which loads before the Operating System, might check that.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 14 (3400)
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe
  • Operating System
    Windows 11 Pro RTM x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 2TB WDC HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
Most people are reading this question wrong.
His clock isn't "out of sync", but Linux & Windows disagree on the time zone offset.

UPDATE: Force Windows to write BIOS time using UTC.
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation]
"RealTimeIsUniversal"=qword:00000001

Side effect is your BIOS time isn't displayed as local time, but dual-booting won't cause time problems.
 
Last edited:

My Computer

System One

  • OS
    Windows 7

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