Martin Burnicki writes:

[...]
> Why should it he write his own software? NTP can do this very well.
>
> If this is run in a closed network where it it sufficient that all nodes
> just have the *same* time then this is absolutely OK.


....unless you are connecting to the Internet. Just think of certificates,
Kerberos, browser caches, EMail time stamps, etc.

>
> For example, we have some customers who need to run their machines on TAI
> rather than UTC. If they synchronize their top level NTP server to TAI then
> using NTP to synchronize all the clients to TAI works like a charme.
>
> Of course those folks must take care not to intermix NTP servers with UTC or
> TAI or whatever, and they must not make those servers publicly accessible.
>
> Martin
> --
> Martin Burnicki
>
> Meinberg Funkuhren
> Bad Pyrmont
> Germany