Re: [LEAPSECS] My FOSDEM slides

2015-03-07 Thread Brooks Harris
On 2015-03-06 08:30 PM, Paul Hirose wrote: On 2015-03-06 11:04, Brooks Harris wrote: The rubber-band era is just entirely irrelevant. Its historically interesting, and may be required for some special application concerning that period, but for practical UTC-like timekeeping its just an

Re: [LEAPSECS] Civil timekeeping before 1 January 1972

2015-03-07 Thread Brooks Harris
Hi Gerard, On 2015-03-07 12:04 PM, G Ashton wrote: Brooks Harris wrote on Saturday, March 7, 2015 11:50 : . . The challenge I'm trying to solve is to provide a deterministic timekeeping and labeling scheme for date and time *after* 1972-01-01T00:00:00Z (UTC) = 1972-01-01T00:00:10 (TAI). This

[LEAPSECS] Civil timekeeping before 1 January 1972

2015-03-07 Thread G Ashton
Brooks Harris wrote on Saturday, March 7, 2015 11:50 : . . The challenge I'm trying to solve is to provide a deterministic timekeeping and labeling scheme for date and time *after* 1972-01-01T00:00:00Z (UTC) = 1972-01-01T00:00:10 (TAI). This is essentially the purpose of civil time timekeeping

Re: [LEAPSECS] Civil timekeeping before 1 January 1972

2015-03-07 Thread Steve Allen
On Sat 2015-03-07T14:14:07 -0500, Brooks Harris hath writ: It is typically warned that date and time before 1972 cannot be accurately represented with NTP or POSIX, for examples. I would say that for PTP * all seconds are always SI seconds * seconds after 1972-01-01 correspond to (TAI - 10) *