<![CDATA[NTP and Leap seconds]]>Hello fellow Netgate community members,

Does anyone have any other recommendations on how to load leap seconds for very accurate time?

I have loaded them into the advanced NTP options here

Ref:
https://www.ietf.org/timezones/data/leap-seconds.list

Screen Shot 2022-09-27 at 5.52.43 PM.png(Image: Text based leap second load)
Screen Shot 2022-09-27 at 6.11.11 PM.png (Image: Leapsecond loads)

]]>https://forum.netgate.com/topic/174963/ntp-and-leap-secondsRSS for NodeWed, 13 May 2026 00:27:46 GMTWed, 28 Sep 2022 01:07:50 GMT60<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 16:32:18 GMT]]>I've never tried that. But I'd say you're doing it correctly since the logs are reporting the file was loaded as expected.

]]>https://forum.netgate.com/post/1063787https://forum.netgate.com/post/1063787Wed, 28 Sep 2022 16:32:18 GMT<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 15:58:42 GMT]]>@stephenw10 is the file essentially the same as the text based advanced option?

]]>https://forum.netgate.com/post/1063777https://forum.netgate.com/post/1063777Wed, 28 Sep 2022 15:58:42 GMT<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 15:57:26 GMT]]>@stephenw10 thanks for the reply, I was thought it meant that it overrides my leap seconds. But that is not the case. I can see the offsets under services ntp

]]>https://forum.netgate.com/post/1063775https://forum.netgate.com/post/1063775Wed, 28 Sep 2022 15:57:26 GMT<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 13:42:53 GMT]]>Yes, that is always reported when ntpd starts. It's not a sign of any sort of issue at that point.

Steve

]]>https://forum.netgate.com/post/1063731https://forum.netgate.com/post/1063731Wed, 28 Sep 2022 13:42:53 GMT<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 07:34:26 GMT]]>@jonathanlee

According to freebsd kernel reports TIME_ERROR: 0x2041: Clock Unsynchronized everything is fine.

Before ntpd starts, your local time will be 'incorrect', like a second or so off.
Except if the local RTC is also a stratum 0 time server ;)

Btw : I've uses your 'leap second file', and I saw the same message.
My pfSense clock look fine.

]]>https://forum.netgate.com/post/1063690https://forum.netgate.com/post/1063690Wed, 28 Sep 2022 07:34:26 GMT<![CDATA[Reply to NTP and Leap seconds on Wed, 28 Sep 2022 01:58:40 GMT]]>@jonathanlee

Screen Shot 2022-09-27 at 6.54.01 PM.png
(IMAGE: Time shows good load however shortly after shows Unsynchronized)

]]>https://forum.netgate.com/post/1063675https://forum.netgate.com/post/1063675Wed, 28 Sep 2022 01:58:40 GMT