Do you have a different servers on WHich you are deploying your wsp ?
If yes, then check the timezone of that server.
Have a look at this link it may help you
ANother this you can try is :
Did you try the steps described above?
1) Run stsadm -o execadmsvcjobs on your CA server.
2) Run stsadm -o execadmsvcjobs on all the farm members that have stsadm.
4)Restart the Timer Service on all farm members.
5)If still not resolved, then try deleting the timer job that is causing the problem.