[LEAPSECS] The ends we seek

[Tony Finch]

On 21 Jan 2012, at 18:53, Ian Batten <igb at batten.eu.org> wrote:

> 

> allow DUT1 to grow to 31 minutes, and then allow anyone who wants to reduce DUT1 to 29 minutes to change their time zone


No that isn't how it works. DUT1 is the difference between UT1 and UTC. It has nothing to do with local time, so it cannot be affected by a change of timezone. The relevant comparison is between UTC plus TZ offset, and UT1 plus longitude divided by fifteen.

Tony.
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