[LEAPSECS] DCF 77

Poul-Henning Kamp phk at phk.freebsd.dk
Thu Dec 23 17:03:02 EST 2010


In message <3B33E89C51D2DE44BE2F0C757C656C8809E141CA at mail02.stk.com>, "Finklema
n, Dave" writes:


>Do any sources of precise, accrued time have a leap second warning bit

>as DCF 77 does? Is the philosophy of leap second warning in DCF 77 a

>good paradigm for helping implement the leap second broadly?


GPS does.

DCF77's leapsecond bit is terrible, it only gives one hour of warning.

This is the hour after midnight local time and on new-years eve
DCF77 reception in Denmark degrades enormously due to all the fireworks
we loft.

--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.


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