[ntp:questions] ignoring leap second announcements

Serge Bets serge.bets at NOSPAM.laposte.invalid
Tue Jul 22 11:35:38 UTC 2008


Hello Tapio,

 On Saturday, July 5, 2008 at 23:18:16 +0300, Tapio Sokura wrote:

> Yeah, IERS just announced the next leap second, which will take place
> at the end of December 2008.

The NIST has not yet updated its official leap-seconds.list, but here
comes one that can be used in the meantime. It lists the December 2008
leap, and is authoritative until just before the next open date at the
end of June 2009.


------ >8 ------ leap-seconds.3424118400 ------ >8 ------
#	Last Update of leap second values:  4 July 2008
#$	3424118400
#	Updated through IERS Bulletin C36
#	File expires on:  28 Jun 2009
#@	3455136000
#
2272060800	10	# 1 Jan 1972
2287785600	11	# 1 Jul 1972
2303683200	12	# 1 Jan 1973
2335219200	13	# 1 Jan 1974
2366755200	14	# 1 Jan 1975
2398291200	15	# 1 Jan 1976
2429913600	16	# 1 Jan 1977
2461449600	17	# 1 Jan 1978
2492985600	18	# 1 Jan 1979
2524521600	19	# 1 Jan 1980
2571782400	20	# 1 Jul 1981
2603318400	21	# 1 Jul 1982
2634854400	22	# 1 Jul 1983
2698012800	23	# 1 Jul 1985
2776982400	24	# 1 Jan 1988
2840140800	25	# 1 Jan 1990
2871676800	26	# 1 Jan 1991
2918937600	27	# 1 Jul 1992
2950473600	28	# 1 Jul 1993
2982009600	29	# 1 Jul 1994
3029443200	30	# 1 Jan 1996
3076704000	31	# 1 Jul 1997
3124137600	32	# 1 Jan 1999
3345062400	33	# 1 Jan 2006
3439756800	34	# 1 Jan 2009
#
#h	c7284bf ac8af4cd de049744 71c8086b 7a1b7850
---------------- >8 ----------------- >8 ----------------


And my signature on the file:

------- >8 ------- leap-seconds.3424118400.asc ------- >8 -------
-----BEGIN PGP SIGNATURE-----

iD8DBQBIhbzrRoHb5pXXHtgRAmpqAJ9QC3Xe+DwEMVfR3WRROzVUOgOx/wCfRgmE
O6tK54YJu4rsGrxNl9EsFsM=
=VBka
-----END PGP SIGNATURE-----
------------------ >8 --------------------- >8 ------------------


For ntp-stable releases: place the leap-seconds.3424118400 file into
<keysdir>, and create an "ntpkey_leap" symlink to it. You must have
a minimal autokey setup: A <keysdir>, host cert and key, and at least
one "crypto" command in ntp.conf

For ntp-dev: place the leap-seconds.3424118400 file into /etc, and
create an "ntp.leap" symlink to it.


With this file and ntp-stable, you are guaranteed to leap in time. With
ntp-dev, you are additionally guaranteed to ignore any other leap
announcement from external sources until 28 June 2009. Because of course
such other announcement can only be wrong.


Serge.
-- 
Serge point Bets arobase laposte point net




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