Hi! I'm an Independent Advisor, my name is Lui and would be happy to assist you today.
Even though you have already tried about 3 troubleshooting attempts with no luck, I'm directing you to a thread the poster mentioned the method worked well in their case, which could be useful to yours in the end.
So, just referring to the answer by the MS community member JayTan08:
"1. Type in 'cmd' in search box. You'll see Command Prompt listed. Right-click and select Run as Administrator.
- Type 'tzutil /l' to see a list of all time zones. Once you find your time zone, copy the description that is on the second line.
Example:
(UTC-06:00) Central Time (US & Canada)
Central Standard Time <---- copy
- Type 'tzutil /s "(paste the time zone here)"
Example:
tzutil /s "Central Standard Time" (make sure to include the quotations) then press ENTER.
- Exit the Command Prompt and verify that the Timezone is correct."
Source: https://answers.microsoft.com/en-us/windows/for...
Hope it can help you solve this issue,
Lui N.