[ntp:questions] Local Time
Richard B. gilbert
rgilbert88 at comcast.net
Thu Mar 15 18:48:39 UTC 2007
Paul.Croome at softwareag.com wrote:
> To re-phrase and amplify Steve's comments:
> Let's get back to basic principles. NTP propagates time through a
> pyramid of
> servers that are interconnected via a jittery network.
> If you feed in UTC at the top of the pyramid, then all the NTP servers
> to the UTC clock. This is generally considered to be the most common
> If you use a computer configured with LCL-CLK as the stratum-1 server
> at the top
> of the pyramid, then all the NTP servers synchronize to that LCL-CLK.
> relating to this scenario pop up often in this newsgroup.
> But there's nothing at all in NTP that prevents you from feeding in
> your own
> flavour of time at the top of the pyramid. It's your decision. The
> only conditions
> are: firstly, your timesource should run at a rate close to 1 sec/sec;
> you must be absolutely certain that your NTP pyramid will never come
> into contact
> with other NTP servers that are running UTC (or vice versa; NTP
> servers that are
> running UTC should never come into contact with your 'contaminated'
> Statements like "NTP runs UTC - period" require qualification.
NTP "BELIEVES" that the time it is getting is UTC. If you feed it
Eastern Slobovia Daylight Savings Time, that's what you will get. This
is generally a REALLY BAD IDEA but someone might want to do it for
reasons I have trouble imagining. If you do it, be careful to NEVER
connect your network to a public network.
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