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Re: [Ntp] Leap second data in roughtime

Tony Finch <dot@dotat.at> Thu, 28 March 2019 15:41 UTC

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Date: Thu, 28 Mar 2019 15:41:25 +0000
From: Tony Finch <dot@dotat.at>
To: Watson Ladd <watsonbladd@gmail.com>
cc: Thomas Peterson <hidinginthebbc@gmail.com>, ntp@ietf.org, Watson Ladd <watson@cloudflare.com>, Marcus Dansarie <marcus@dansarie.se>, Martin Burnicki <martin.burnicki@meinberg.de>, Daniel Franke <dfoxfranke@gmail.com>
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Subject: Re: [Ntp] Leap second data in roughtime
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Watson Ladd <watsonbladd@gmail.com> wrote:
>
> The rational is it is easy to convert to POSIX time, monotonic, and
> provided by your favorite GNSS/observatory.
>
> I'd like to hear concerns: this seemed like the best option but should be
> discussed on the list.

A client can't easily do leap smear if it only has MJD plus time since
midnight: it needs early warning of an upcoming leap second so that it
can start smearing at the right time.

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/
Forth: Southwest 5 or 6. Slight or moderate. Fair. Good.

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