TAI zone?

David Patte dpatte at relativedata.com
Thu Jun 30 01:28:59 UTC 2011

I think basically all operating systems, including POSIX systems, use 
UT1 not UTC, which means they can theoretically be accurate within 1 
second of UTC. In this way there is no need for that nasty 61st second.

On 2011-06-29 21:20, Paul Koning wrote:
> On Jun 29, 2011, at 9:01 PM, Paul Koning wrote:
>> On Jun 29, 2011, at 8:22 PM, Robert Elz wrote:
>>>    Date:        Wed, 29 Jun 2011 14:27:53 -0400
>>>    From:        Paul Koning<paul_koning at Dell.com>
>>>    Message-ID:<1ED832E5-A4DA-4BCC-8273-BA2715F12017 at dell.com>
>>> | I wonder if this requests amounts to "Posix should be extended to
>>> | provide an interface to TAI".  If so, that certainly makes sense.
>>> | Is that something tzdata can do, or does it have to be done in some
>>> | other layer?
>>> It is a mess.   Do remember that POSIX time is really neither UTC nor TAI.
>>> That is, it acts like TAI, but the value is the same as it would be if it
>>> were UTC.   POSIX manages this by making seconds be variable length objects,
>>> so there's always exactly 31536000 of them in a year (31622400 in leap years).
>> Wow.  Are you sure of that?  ...
> Never mind, I guess my leg just got pulled.
> 	paul

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