Re: Monsters from the id

2006-01-12 Thread Michael Deckers
John Cowan wrote: [If TAI - 33 s were taken as the new basis for civil timescales, then] It is UTC that would be eliminated as the basis for local time. It could be maintained for such other purposes as anyone might have. Yes, the IERS could maintain it as the timescale for a

Re: The real problem with leap seconds

2006-01-12 Thread David Malone
Yes: there is an order on the set of values of timescales - it is a basic property of spacetime models that one can distinguish past and present, at least locally. Spacetime is a differentiable 4-dimensional manifold, its coordinate functions are usually two times

Re: Monsters from the id

2006-01-12 Thread Mark Calabretta
On Thu 2006/01/12 02:36:44 CDT, John Cowan wrote in a message to: LEAPSECS@ROM.USNO.NAVY.MIL We already have that repeated time sequence and gap in much of the world, and live with it. These repetitions would be no better and no worse; when a gap is present, the local sovereignty can omit the

Re: Monsters from the id

2006-01-12 Thread Rob Seaman
On Jan 12, 2006, at 12:36 AM, John Cowan wrote:No one, at least not on this list, is arguing for an alignment of theabsurd leap hour proposal (henceforth ALHP) with DST changes.I went rummaging through the ITU proposal and back as far as Torino.  Found this comment from a LEAPSECS thread on 28

Re: Monsters from the id

2006-01-12 Thread John Cowan
Rob Seaman scripsit: I went rummaging through the ITU proposal and back as far as Torino. Found this comment from a LEAPSECS thread on 28 July 2003: At Torino the proponents of omitting leap seconds supposed that the governments of the world might handle this situation using leap hours

Re: Monsters from the id

2006-01-12 Thread John Cowan
Rob Seaman scripsit: And the point I'm making is that you can't shift timezones at will to accomplish this without creating seams in legally realized time. We already have seams in legally recognized time. Just making the dark stay put would result in ambiguous timekeeping. Daylight saving