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Re: [dtn] [EXTERNAL] Re: DTN time and RFC8877

Carsten Bormann <cabo@tzi.org> Fri, 04 December 2020 17:19 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Fri, 04 Dec 2020 18:19:26 +0100
Cc: "R. Atkinson" <rja.lists@gmail.com>, Brian Sipos <BSipos@rkf-eng.com>, "dtn@ietf.org" <dtn@ietf.org>
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To: "Burleigh, Scott C (US 312B)" <scott.c.burleigh=40jpl.nasa.gov@dmarc.ietf.org>
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Subject: Re: [dtn] [EXTERNAL] Re: DTN time and RFC8877
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On 2020-12-04, at 17:39, Burleigh, Scott C (US 312B) <scott.c.burleigh=40jpl.nasa.gov@dmarc.ietf.org> wrote:
> 
> 	A DTN time is an unsigned integer indicating the number of milliseconds that have elapsed since the DTN Epoch, 2000-01-01 00:00:00 +0000 (UTC), which is exactly 946684800 seconds after the Unix Epoch.  

Not true.
(Unless you actively remove the leap seconds from the time elapsed.)

> DTN time is not affected by leap seconds.  

That is exactly the meaningless statement that causes all these misunderstandings.
Whatever you do around civil time, you will be affected by leap seconds, in one way or the other.  You can only choose how.

Grüße, Carsten

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