nanog mailing list archives
Re: F-ckin Leap Seconds, how do they work?
From: Vadim Antonov <avg () kotovnik com>
Date: Tue, 03 Jul 2012 18:55:29 -0700
On 7/3/2012 6:28 PM, Steve Allen wrote:
On 2012 Jul 3, at 18:13, Vadim Antonov wrote:PS. I would vote for using TAI instead of UTC as the non-relativistic time base in computer systems.A problem with the use of TAI is that the BIPM and CCTF (who make TAI) expressed strongly that they do not want it used as a system time in document CCTF09-27 http://www.bipm.org/cc/CCTF/Allowed/18/CCTF_09-27_note_on_UTC-ITU-R.pdf so strongly that they end by contemplating the discontinuation of TAI.
There's always a possibility of using pseudo-TAI internally by reconstructing it from UTC. This is not the best solution (because it requires systems to have long-term memory of past leap seconds, or ability to access a reliable storage of such), but at least this removes the burden of doing complicated time handling from application software.
Actually, what they are saying is that they would discontinue TAI *if* definition of UTC is amended to remove future leap seconds. The document makes it clear that they recognize the necessity of continuous coordinate time standard.
--vadim
Current thread:
- Re: F-ckin Leap Seconds, how do they work?, (continued)
- Re: F-ckin Leap Seconds, how do they work? Wolfgang S. Rupprecht (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Jay Ashworth (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Keith Medcalf (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 03)
- RE: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Vadim Antonov (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tony Finch (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Vadim Antonov (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Steve Allen (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Vadim Antonov (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Christopher Morrow (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Jimmy Hess (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Peter Lothberg (Jul 05)
- Re: F-ckin Leap Seconds, how do they work? Jay Ashworth (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Owen DeLong (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Steve Allen (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? George Herbert (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tyler Haske (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Majdi S. Abbas (Jul 03)
- Re: F-ckin Leap Seconds, how do they work? Tyler Haske (Jul 03)