In message: <[EMAIL PROTECTED]>
            Neal McBurnett <[EMAIL PROTECTED]> writes:
: These astronomical and navigation systems currently get inputs of time
: from all sorts of other systems and people: other instruments, other
: computers, sub-contractors, etc.  Changing the meaning of UTC would
: lead to a cascade of systems that changed their own timescales and
: I/O formats, meaning that auditing the flow of time data between them
: would get more and more complex for a long time.

The changing formats should indeed be phased in.  First, changes to
the data streams so that they can represent DUT1 > 0.9s.  Next, fix
everything that breaks...  Repeat.  You're likely right, this will
take a long long time :-(.

Warner

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