From: Miroslav Lichvar Date: Thu, 15 Feb 2018 15:47:41 +0000 (+0100) Subject: doc: improve description of refclock tai option X-Git-Tag: 3.3-pre1~43 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bc112f8b45706f9c36fcd9bdf9b675d72a7fda2;p=thirdparty%2Fchrony.git doc: improve description of refclock tai option Emphasize that tzdata must be kept up to date in order for the correction to work as expected. --- diff --git a/doc/chrony.conf.adoc b/doc/chrony.conf.adoc index c6702ea7..dfacfc9e 100644 --- a/doc/chrony.conf.adoc +++ b/doc/chrony.conf.adoc @@ -550,12 +550,11 @@ unauthenticated NTP sources in order to improve the accuracy of the clock. They can be selected and used for synchronisation only if they agree with the trusted and required source. *tai*::: -This option indicates that the time on the given reference clock is kept in TAI -instead of UTC and that *chronyd* should apply the current TAI-UTC offset to -samples taken from this refclock. To use this, the *leapsectz* directive must -be used as *chronyd* uses the timezone files to compute the TAI-UTC offset. -This option does not make sense if the given refclock is only being used for -PPS input. +This option indicates that the reference clock keeps time in TAI instead of UTC +and that *chronyd* should correct its offset by the current TAI-UTC offset. The +<> directive must be used with this option and the +database must be kept up to date in order for this correction to work as +expected. This option does not make sense with PPS refclocks. *minsamples* _samples_::: Set the minimum number of samples kept for this source. This overrides the <> directive.