The current time on this computer and the current time on the network are different

If you get the next error when trying to log on to your machine:

The current time on this computer and the current time on the network are different. For more information about Date/Time Properties, see Help and Support. To log on, contact your system administrator.

This is what you can do to fix it.

1. Log on to the local machine using an account with administrator's rights
2. Go to Start>>Run
3. On the Open box type cmd (the command window should show up)
4. Type:     net time \\YourServername /set /y      
5. Another option could be:      net time /domain:YourDomainName /set /y   
6. Then press enter
7. Log Off
8. Now you are able to log on on the domain

If you logged on with an account without admin rights you will get the next error:

System error 5 has occurred, access denied

The computer should update the date and time automatically - especially if you joined the PC to the domain via the //connect site, if you keep getting this error it may be a sympton of a bigger problem