[LEAPSECS] happy anniversary pips

[Tony Finch]

Ian Batten <igb at batten.eu.org> wrote:

>

> All the coverage again points out that the "Greenwich" time signal is in fact a melange of

> UTC(GPS), UTC(NPL) and the BBC's own atomic clocks, rather than GMT (ie UT1).

> Another indicator that although UK legal time is UT1, in practice not only

> does everyone use UTC, but sources of UT1 with better than 100ms resolution

> are difficult to access in real time (MSF only carries DUT1 to 100ms).


See also section 5.5.6.1 of
http://www.lib.cam.ac.uk/deptserv/manuscripts/RGO_history/rgo_home_ch5.html

Tony.
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