<http://www.ietf.org/internet-drafts/draft-ietf-impp-datetime-01.txt>
says that
The grammar element time-second may have the value "60" at the end of
June (XXXX-06-30T23:59:60Z) or December (XXXX-12-31T23:59:60Z) if
there is a leap second at that time (see Appendix D for a table of
leap seconds). At all other times the maximum value of time-second
is "59".
But, <http://tycho.usno.navy.mil/leapsec.html> states that:
The decision to introduce a leap second in UTC is the responsibility of
the International Earth Rotation Service (IERS). According to the CCIR
Recommendation, first preference is given to the opportunities at the
end of December and June, and second preference to those at the end of
March and September.
Note that there has not yet been a March or September leap second, but
who knows what the future will bring? Otherwise, the draft looks great.
- dan
--
Dan Kohn <mailto:dan(_at_)dankohn(_dot_)com>
<http://www.dankohn.com/> <tel:+1-650-327-2600>
-----Original Message-----
From: nsyracus(_at_)cnri(_dot_)reston(_dot_)va(_dot_)us
[mailto:nsyracus(_at_)cnri(_dot_)reston(_dot_)va(_dot_)us] On
Behalf Of Internet-Drafts(_at_)ietf(_dot_)org
Sent: Friday, 2001-05-11 04:13
To: IETF-Announce:; IETF-Announce:; @loki.ietf.org
Cc: impp(_at_)iastate(_dot_)edu
Subject: I-D ACTION:draft-ietf-impp-datetime-01.txt
A New Internet-Draft is available from the on-line Internet-Drafts
directories. This draft is a work item of the Instant Messaging and
Presence Protocol Working Group of the IETF.
Title : Date and Time on the Internet: Timestamps
Author(s) : G. Klyne, C. Newman
Filename : draft-ietf-impp-datetime-01.txt
Pages : 16
Date : 10-May-01
This document defines a date and time format for use in Internet
protocols that is a profile of the ISO 8601 [ISO8601] standard for
representation of dates and times using the Gregorian calendar.
A URL for this Internet-Draft is:
http://www.ietf.org/internet-drafts/draft-ietf-impp-datetime-01.txt
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