How to set W2K Time via a Batch file

I have a need to set the date and time of W2K Adv Server machine to a specific time and date, do my tests, then reset the system time to the same date and time as before and repeat my tests. This will loop a number of times. I try to write a batch file to do this, but I can’t find enough info for W2K to perform this task. Does anyone has any suggestion, or pointer? Thanks in advance.

Regards,