[ntp:hackers] Leap second list file

Warner Losh imp at bsdimp.com
Sun Jan 15 20:16:16 UTC 2012


On Jan 15, 2012, at 10:00 AM, Danny Mayer wrote:

> On 1/6/2012 10:35 AM, Havard Eidnes wrote:
>>>> Is this the proper way to act as an information provider in this
>>>> day and age?  My take is "No, it most certainly is not, and
>>>> instead it casts into doubt their long-term reliability as a
>>>> source of this information".
>>> 
>>> Please point us to the official Norwegian site which hosts this
>>> information?
>> 
>> I thought one global official information source would be
>> sufficient?  It's also the only source documented in the NTP
>> documentation.
> 
> Actually, part of the protocol indicates the leap second is coming up.
> You don't have to copy leap second files to get the notification. See
> RFC 5905 Section 7.3 on the LI bits. It gets set during the month in
> which the leap second is to be added or removed.

Except that you don't know how many leap seconds have elapsed.  This makes running the 'right' time zone impossible.

Warner



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