which proxy ( if any ) does time synch use?

My new macbook pro knows time correctly at home ( using one of the nist servers ).

At work I have a different location setup and proxies configured ( http and https and ftp I think ) and everything seems to work. I can check for updates, use safari, connect to app store and iTunes etc. But the time is off ... and cannot seem to sync.

There are several other protocols I guess I can configure a proxy for. Does anyone know which of them the time sync uses?

Thanks John

 

Well the http proxy was already configured and it was not synching.

I went ahead and configured all the available remaining proxy's listed ( SOCKS, Streaming, Gopher ) ... and now it is working.

Prior to that change I just had http, https, and ftp proxy info set.

It would be nice if you just configured one of them ( http ) and then clicked and said that all the rest of them use that same information.

But anyway it is working now ... thanks.