Re: [ntp:questions] leap second happens on...

2012-05-28 Thread unruh
On 2012-05-29, Alan J Rosenthal wrote: > Marco Marongiu writes: >>The question is: does it happen at 00:00:00 UTC (so it must be shifted >>ahead/behind depending on the timezone) I believe it occurs at the second before 00:00:00 (ie, whatever happens, it finishes at that time) > > Yes... ima

Re: [ntp:questions] leap second happens on...

2012-05-28 Thread Alan J Rosenthal
Marco Marongiu writes: >The question is: does it happen at 00:00:00 UTC (so it must be shifted >ahead/behind depending on the timezone) Yes... imagine how gnarly it would be if two timezones normally (say) 7200 seconds apart were temporarily 7201 or 7199 seconds apart! _

Re: [ntp:questions] leap second happens on...

2012-05-25 Thread Steve Allen
On May 25, 4:18 am, Marco Marongiu wrote: > The question is: does it happen at 00:00:00 UTC (so it must be shifted > ahead/behind depending on the timezone) or, by convention, it happens at > 00:00:00 at the local timezone? The ITU-R recommendation is the origin of the practice of leap seconds, a

Re: [ntp:questions] leap second happens on...

2012-05-25 Thread Brian Utterback
On 5/25/2012 7:18 AM, Marco Marongiu wrote: ...on June 30th/July 1st transition, so we'll have: June 30th 23:59:59 June 30th 23:59:60 July 1st 00:00:00 The question is: does it happen at 00:00:00 UTC (so it must be shifted ahead/behind depending on the timezone) or, by convention, it happens a

Re: [ntp:questions] leap second happens on...

2012-05-25 Thread Marco Marongiu
On 25/05/2012 15:01, Miguel Gonçalves wrote: > It happens at 23:59:59 UTC: > ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat > > The bulletin states that the leap second is introduced at the end of > June so 00:00:00 is not a possibility because it is already July. thanks a lot Miguel! Ciao -

Re: [ntp:questions] leap second happens on...

2012-05-25 Thread Miguel Gonçalves
It happens at 23:59:59 UTC: ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat The bulletin states that the leap second is introduced at the end of June so 00:00:00 is not a possibility because it is already July. HTH, Miguel On 25 May 2012 12:18, Marco Marongiu wrote: > ...on June 30th/July 1s

[ntp:questions] leap second happens on...

2012-05-25 Thread Marco Marongiu
...on June 30th/July 1st transition, so we'll have: June 30th 23:59:59 June 30th 23:59:60 July 1st 00:00:00 The question is: does it happen at 00:00:00 UTC (so it must be shifted ahead/behind depending on the timezone) or, by convention, it happens at 00:00:00 at the local timezone? I am quite