Re: [LEAPSECS] (no subject)

2008-12-22 Thread Peter Vince
Please explain why changing the name of the broadcast time scale to TI and putting UTC and the leap seconds into zoneinfo does not satisfy all requirements of the need for uniform time scale. You keep asking this question and we keep explaining that it breaks too much software. Tony. Tony,

Re: [LEAPSECS] (no subject)

2008-12-22 Thread Tony Finch
On Mon, 22 Dec 2008, Steve Allen wrote: I am aware of the interesting breakages that happened when zoneinfo files were retroactively modified to be inconsistent with POSIX. Clearly that change cannot be done for past history. It can't be done for future history either, because it breaks

Re: [LEAPSECS] (no subject)

2008-12-22 Thread Rob Seaman
Poul-Henning Kamp wrote: There is one (major) problem: software does not grok leapseconds. If my car fails to grok gasoline, I fix the car. Leap seconds (or the equivalent) are simply a fact of life on a tidally slowing orb. If you wish to eliminate the overhead of managing leap seconds

[LEAPSECS] (no subject)

2008-12-20 Thread Steve Allen
In addition to what John Cowan said, I'd also point out that planning is the one of the biggest issues with leap seconds. In terms of planning for the future, if an application cares about local time, not knowing whether a leap second is going to happen outside a six month window can be a much

Re: [LEAPSECS] (no subject)

2008-12-20 Thread Poul-Henning Kamp
In message 006d7a34-31d9-4492-9014-667c7b926...@ucolick.org, Steve Allen writ es: Please identify the operations which need one second predictability over a time span of six months. Wrong question. Try: Please identify computer communications where it is not guaranteed that all involved

Re: [LEAPSECS] (no subject)

2008-12-20 Thread M. Warner Losh
In message: 006d7a34-31d9-4492-9014-667c7b926...@ucolick.org Steve Allen s...@ucolick.org writes: : I want to know why I should give up the notion of civil time being : based on mean solar time, for myself and for posterity. Leap-seconds, as implement, are unworkable. You can see

Re: [LEAPSECS] (no subject)

2008-12-20 Thread Rob Seaman
Dude, I'm not representing your position at all. Assertions are made. I respond. The current system for instance, is simply the mechanics of the solar system. It will remain the underlying system whatever the ITU decides. What is your position on the solar system? I don't know.

Re: [LEAPSECS] (no subject)

2008-12-20 Thread Ashley Yakeley
On Sat, 2008-12-20 at 08:03 -0800, Steve Allen wrote: I want to know why I should give up the notion of civil time being based on mean solar time, for myself and for posterity. I believe the answer being argued is the aerospace and nuclear industries would save money. -- Ashley Yakeley

Re: [LEAPSECS] (no subject)

2008-12-20 Thread Steve Allen
On 2008 Dec 20, at 10:55, M. Warner Losh wrote: Either we kill them entirely, since they are going away eventually anyway, or we put them on a regular schedule like leap years. The current system sucks too bad to be allowed to continue. Pardon me, but I'm missing something in this about the