[ntp:questions] ntpd + TrueTime GPS + daylight saving
Bob Rahe
bob at hobbes.dtcc.edu
Thu May 24 19:22:58 UTC 2007
In article <slrnf5afur.p1m.usenet at pirx.askja.de>,
Ralf Gross <usenet-2003-2 at ralfgross.de> wrote:
>Hi,
>
>I'm running a local ntpd server (CentOS 4.3) with an attached TrueTime
>NTS 100 GPS device.
>
>The /etc/sysconfig/clock contains
>
>ZONE="Europe/Berlin"
>UTC=true
>ARC=false
>
>The NTS 100 is set to
>
>F66 OFF
>F01 +00:00
>F03 UTC 05/24/07 07:31:19
>
>(Daylight saving is off. Timezone is +00:00)
>
>
>This is working fine for 2 years now. Today I was asked, if the daylight
>saving information is transmitted too. There seems to be some devices
>that have no information about daylight saving .
...
>Am I right that our local ntpd sends the ntp packages in UTC?
Yes, the NTP 100 gives you just UTC. It does have a configurable time
zone (and it allows you to actually set it for the new EDT stuff, even
as old as it is...) but that's only used for the display/web page stuff.
Bob
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