For those who using Linux, the following shell command verifies that the
current 'timezone' file contains leap seconds and can be used with this
directive

TZ=right/UTC date -d 'Dec 31 2016 23:59:60'

Ideally, it MUST return "Sat Dec 31 23:59:60 UTC 2016". If 'timezone'
file is not ready, the output will be "date: invalid date"

My TBolt shows me the message that "LeapSeconf event pending". So, if I
understand it right, I should see see it on LH 5.0 screen somehow.
My lab NTP suppose to start slow down its clock 12 second before the
event to match the time.
Also I'll collecting the 'main' cycles to see what will happens during
the 'jump'.

--
WBW,

V.P.

Is there a way in LH to test a clock against accurate internew time
(accurate to .5 seconds I guess)?

I have the Arcron WWVB clock that is newly supported in LH and I'd like to
see when the leap second correction is made.

On Thu, Dec 29, 2016 at 9:11 AM, Vlad time@patoka.org wrote:

Hi Paul,

The Arcron Zeit was one of the early favorites for precise timing. There were a couple other WWVB receivers at the time but IIRC none were as interesting, inexpensive, or hacker friendly as the Arcron. Not sure what model you have (contact me off-list).

Here's a capture of a leap second by an Arcron Zeit. Via usenet (after email and the web, but before google and time-nuts, were invented):

http://leapsecond.com/notes/ls-wwvb-97.htm 

/tvb

----- Original Message -----
From: "Paul Alfille" paul.alfille@gmail.com
To: time@patoka.org; "Discussion of precise time and frequency measurement" time-nuts@febo.com
Sent: Thursday, December 29, 2016 3:48 PM
Subject: Re: [time-nuts] A Leap Second is coming

I'm going to definitely observe my GPS clock to check its behavior. It should repeat second zero (in my case of 4PM PST). Not the most exactingly accurate depiction, but it's the best I can do with the architecture.

Sent from my iPhone

The leap second warning is present in the PTB clock too (Europe):
https://uhr.ptb.de/

On Fri, Dec 30, 2016 at 8:49 PM, Nick Sayer via time-nuts
time-nuts@febo.com wrote:

This is my clock (NTP synchronized) -- with a bit of luck, the second
hand will stop (for a second) at the appropriate instant (7PM Eastern).
I intend to catch it on video.

Unfortunately, this being an inexpensive clock, the plastic gears result
in the hands not aligning quite correctly (it depends on the force of
gravity). By the next leap second, I'll upgrade to a better clock.

Philip

On 30/12/2016 19:30, Azelio Boriani wrote:

Here's what I got:

https://youtu.be/nGMFzhNFrb4

It worked as I expected. 4:00:00 PM was two seconds long.

Sent from my iPhone

Here's mine on my Casio F-91W
http://imgur.com/yjbhXh6

On Sun, Jan 1, 2017 at 4:09 AM Nick Sayer via time-nuts time-nuts@febo.com
wrote: