How do I change the time in Unix?

Hi there. This is probably a very stupid question, but...

How do I change or set the time in UNIX? I am taking care of a Sun Ultra 5 running SunOS 5.7 and I can't figure out how to change the time.

Help.

http://forums.unix.com/showthread.php?threadid=269

Thank you for your reply. I am sorry it took a while to respond. Is there any way though that I can synchronize the time on the server with the times on the clocks here?

Thank you.

Try with ntp (network time protocol). I don knok in sun, try with ntpdate.