Mechanism to provide tai-utc.dat locally

From: Ashley Yakeley <ashley_at_SEMANTIC.ORG>
Date: Sun, 24 Dec 2006 22:00:07 -0800

Hello, I just joined the leap seconds list. I wrote the "time"
package for the Haskell programming language.

I include code for making conversions between TAI and UTC, given a
leap-second table. I also include code for parsing a tai-utc.dat file
into a leap-second table. I do not, however, simply include a leap-
second table as any program compiled with one would be out of date
after six months.

This has led me to consider run-time methods of obtaining leap-second
information, and how that might be standardised for use by software
authors. For instance, I imagine a software package that established
a well-known place in the directory hierarchy to find tai-utc.dat and
perhaps other "earth data" files, and was responsible for keeping
them up to date. Other software could then make use of the package
without each having to implement their own mechanism.

Does this strike people as worthwhile? Does anyone know of an
existing effort along these lines?


Ashley Yakeley
Seattle WA
Received on Sun Dec 24 2006 - 22:10:38 PST

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