Change Date and Time in non-admin mode

Question

Hello gurus, Never needed to do so inside a .net app, but now that I need and found it requires admin privilege, I'm surprised, didn't know if changing the date is security related. Anyway, is there any way to do so in non-admin mode in vb.net or C#? I found something here: https://stackoverflow.com/questions/26900950/how-to-change-system-date-and-time-with-vb-net-on-windows-7 That mentioned SetLocalTime function, but seems not in vb/c#, anyone knows if it can be used to do the task in the non-admin mode? Thanks.

Answer 1

Changing the system time requires a privilege that is not ordinarily present in the token of a non-administrator account. Although I don't recommend doing this it is possible to edit the local security policy user rights assignment to change this. There is a lengthy discussion of this issue at https://learn.microsoft.com/en-us/answers/questions/1498058/setsystemtime()-setlocaltime()-failed-error-privil

Answer 2

Hi @Peter Volz ,

If you want to change Date and Time in non-admin mode, you need to Assigning Privileges to an Account so that the account which is running this application could change Date and Time.

Assign privileges to the account by using the Local Security Policy Microsoft Management Console (MMC) snap-in (Secpol.msc).

Best Regards.

Jiachen Li

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