Windows 10: Windows 10 Time Zone keeps changing to US Eastern time

Since Windows 10 last update a few days ago, my computer time keeps changing to US Eastern time, even though I haven't moved from GMT. Google calendar still shows the correct time, but not MS Outlook calendar. I've tried a range of solutions but it always goes back to the wrong tome zone within a few minutes.

:)

 

time zone keeps changing to brussels time instead of eastern time.

time zone keeps changing to brussels time instead of eastern time. I've changed it at the time settings and even gone back to BIOS settings at start-up, but it keeps happening. I ran anti-virus as well.

 

Time Zone Keeps Changing - Windows 10 - Laptop

My time zone is Eastern (U.S.). My laptop clock keeps changing to the Amsterdam time zone.

 

Unable to change the time zone in Windows 10

I'm running Windows 10 Pro. My time zone is Jerusalem, but I need to change it to Eastern to test a program I'm working on.

The time zone won't change. I have tried:

• From the clock/calendar, when I change it - it changes back.
  
• From Control Panel - Date and Time, "Change time zone..." - when I click save I get the message "Error occurred - your changes could not be saved."
  
• As the Built-in Administrator from the command line using tzutil - I get the message "Insufficient privileges to set the current time zone."
  

The registry key TimeZoneInformation has Full Control for Administrators

Administrators are listed in the Local Security Setting "Change the Time Zone"

Any suggestions?