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