pc needs to be taken of domain

HI

I have a window7 machine that needs to be taken of my domain and re-added but as I do not have local admin credentials I cannot do it with current user account I have ( very locked down) and cannot do any admin work such as removing it from domain and re-adding it etc..

Issue I have is this;

my windows 7 machine is not in sync with my Domain controller and hence I can only login with one account I have which is normal user account.  machine's  time settings shows that I am 4 minutes behind. I believe this is where the issue is but as mentioned, I cannot do any changes on the machine. I believe normal user account is cached in the memory and hence I can only with that account,

when I tried to logon with another account I get this error  " there is no logon servers available to service the request"   this is  from windows 7 machine and my DC is 2008 rd.  

I believe if I can remove it and re-add it domain it should fix my issue but I cannot do it as PC is out of sync with my AD and user account Im using is locked down to do any admin work.  

Can this fixed via registry? I can do regedit?