NTP - Network Time Protocol

It is probably just me, but time is important. Having accurate time down to the millisecond is very important. And having you computer's time sync with a near-atomic clock is ideal. Hence NTP.

With Gentoo here is howto - NTP HOWTO

Once setup here are a few command to watch which servers you are connected to, what stratum you are in, and more data about the time than you are generally interested in.

Who are you connected to?
ntpq -c pe

What stratum are you?
ntpq -c rv | grep stratum

More data than necessary.
ntpq -c rv