Re: [LEAPSECS] Risks of change to UTC

From: M. Warner Losh <imp_at_BSDIMP.COM>
Date: Fri, 20 Jan 2006 15:16:22 -0700 (MST)

In message: <43D15F4C.5_at_usa.net>
            James Maynard <james.h.maynard_at_USA.NET> writes:
: ones position using sight reduction tables. Today a mechanical watch or
: chronometer, or a battery-powered wristwatch, can be set to UTC using
: radio time signals. Then when power fails, the sailor still has a
: reasonably accurate spprodximation to UT1 available.

If DUT1 is broadcast, then one can set the time keeping device to UT1
by a means similar to setting it to UTC, even if DUT1 exceeds 0.9s
with a similar accuacy (or better). There's nothing that says a watch
has to display UTC to be set correctly.

Warner
Received on Fri Jan 20 2006 - 14:19:27 PST