How to prevent system time change?

[Mike]

I know, it is old question. Is there some new way to protect system
time changes with C# 2.0?

What is the best way based on your oppinion?

Thanks, I appreciate your help.

Mike

 

[Hans Kesting]

I know, it is old question. Is there some new way to protect system

time changes with C# 2.0?

What is the best way based on your oppinion?

Thanks, I appreciate your help.

Mike

I don't think this is possible. System clock change is an OS function (or
even BIOS) and C# (or rather the .Net framework) runs on top of the OS.
I don't think it's possible to prevent the OS from doing something, as this
would also mean that your application needs to be running the whole time.

But maybe you can contact a timeserver (NTP protocol) to see if the local
time differs from "real time" (but remember to adjust for timezones and
daylight savings time - use UTC?). However, this requires internet access.

Hans Kesting

 

[Nicholas Paldino [.NET/C# MVP]]

The only thing that comes close to this would be to revoke the user's
SeSetSystemTime privilege. This will prevent them from being able to set
the system time. Of course, you have to have the authority to make that
change to the system yourself.