[time-nuts] Leap second to be introduced at midnight UTC December 31 this year

[Gary E. Miller]

Yo Tom!

> > IERS is free to schedule a leap second at the end of any month. And
> > it may be an insert or a delete. Assume nothing more or less in your
> > code. Code and test and document for positive and negative leap
> > seconds equally.  
> 
> Got a reference for that?  I know many people that will insist
> otherwise.

Never mind, I think I found a reference that is commonly quoted:

CCIR Recommendation 460-4 (1986).

http://www.itu.int/rec/R-REC-TF.460-4-198607-S/en

    2.	Leap-seconds
    2.1 A positive or negative leap-second should be the last second
    of a UTC month, but first preference should be given to the end of
    December and June, and second preference to the end of March and
    September.

But it is marked Superceded.  I'm guessing that is replaced by 460-6?

http://www.itu.int/rec/R-REC-TF.460-6-200202-I/en

It says the same thing in section 2.1

Nothing says it has to be those 4 months...

I have some code comments in gpsd to fix...

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
	gem at rellim.com  Tel:+1 541 382 8588
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