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Re: [Cbor] [dtn] [EXTERNAL] Re: [EXT] Re: LTC timescale (Re: Question regarding RFC 9171 - How to incorporate "Coordinated Lunar Time")

Carsten Bormann <cabo@tzi.org> Sat, 13 April 2024 05:35 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Sat, 13 Apr 2024 07:34:54 +0200
Cc: Stephen Farrell <stephen.farrell@cs.tcd.ie>, "Rieber, Richard R (US 347R)" <richard.r.rieber=40jpl.nasa.gov@dmarc.ietf.org>, Jorge Amodio <jmamodio@gmail.com>, "EXTERNAL-Sipos, Brian J (US 9300-Affiliate)" <brian.sipos@jhuapl.edu>, John Dowdell <john.dowdell.ietf@gmail.com>, DTN WG <dtn@ietf.org>, cbor@ietf.org
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Subject: Re: [Cbor] [dtn] [EXTERNAL] Re: [EXT] Re: LTC timescale (Re: Question regarding RFC 9171 - How to incorporate "Coordinated Lunar Time")
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On 13. Apr 2024, at 03:10, <sburleig.sb@gmail.com> <sburleig.sb@gmail.com> wrote:
> 
> Changing the definition of "DTN time”


"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). DTN time is not affected by leap seconds.”

This definition pretty much definitely makes DTN time an offset timescale from TAI, not from UTC.

Maybe that wasn’t the intention, but I would think this actually is a good definition, if one is willing to ignore the relativistic meaning of “elapsed”.

Grüße, Carsten

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