Hi Tom,
On 2015-05-31 07:23 PM, Tom Van Baak wrote:
Hi Brooks,
I don't know enough about Windows timekeeping in general or versions of Windows
in particular to give you any authoritative answer. But here's one data point
that might help clarify what you and PHK are talking about.
On Windows
In message 556bfd47.4050...@edlmax.com, Brooks Harris writes:
Multiply this by 250 million [1] PC's still happily running XP
and you can better understand why Microsoft hasn't been that
interested in leap seconds, NTP, or participating in the hh:59:60
timestamp nightmare.
Yes, they've
On 30 May 2015, at 23:05, Tom Van Baak t...@leapsecond.com wrote:
I understand that's why JD rolls over at noon instead of midnight. But,
for the other 7 billion people on the planet, it's nice that the
calendar, and local legal time, and even MJD rolls over at midnight
instead of noon.
And
On 31 May 2015, at 03:28, Rob Seaman sea...@noao.edu wrote:
DST changes at 2am in the US and 1am in the EU.
That is 01:00 UTC which is 02:00 standard / 03:00 summer time for most of
the EU.
Tony.
--
f.anthony.n.finch d...@dotat.at http://dotat.at/
Hebrides: Southwest 5 or 6, becoming
Tom Van Baak said:
On a positive note, this means one could actually experience more than one
Windows non-leap-second on June 30. Maybe this year I should try to
celebrate the leap second twice, in Mountain and in Pacific time. Time to
pull out the road map.
Why stop with Mountain and
On 31 May 2015, at 03:28, Rob Seaman sea...@noao.edu wrote:
DST changes at 2am in the US and 1am in the EU.
That is 01:00 UTC which is 02:00 standard / 03:00 summer time for most of
the EU.
Tony.
Tony, that's my understanding too, that all DST changes always occur at 2am
local time,
In message 20150601172537.gc14...@ucolick.org, Steve Allen writes:
We need a resolution of the issue so that the out-of-the-box defaults
can just work without any choices.
I'm happy that you have finally realized why some parties are pushing
for the only resolution on the table[1] which
On Mon 2015-06-01T13:12:50 -0400, G Ashton hath writ:
Rules for deciding when to count leap seconds and when to ignore them are
not fully developed; it's entirely understandable that programmers have
trouble programming in an environment where there is no universal agreement
on the rules.
On 2015-06-01 12:37 PM, Tom Van Baak wrote:
Tom Van Baak said:
On a positive note, this means one could actually experience more than one
Windows non-leap-second on June 30. Maybe this year I should try to
celebrate the leap second twice, in Mountain and in Pacific time. Time to
pull out the
Rob (or Steve),
Can you send me a definitive URL with global TZ rules so I can grep|sort|uniq
to get a feel for when DST transitions occurs? I guess I thought it always was
2 am local (which implies jumps from 02h-03h and 02h-01h).
Also, possibly related, do you know of any place where DST is
On Mon, Jun 1, 2015 at 6:35 PM, Tom Van Baak t...@leapsecond.com wrote:
On 31 May 2015, at 03:28, Rob Seaman sea...@noao.edu wrote:
DST changes at 2am in the US and 1am in the EU.
That is 01:00 UTC which is 02:00 standard / 03:00 summer time for most of
the EU.
Tony.
Tony,
On Mon 2015-06-01T12:05:08 -0700, Tom Van Baak hath writ:
Can you send me a definitive URL with global TZ rules so I can
grep|sort|uniq to get a feel for when DST transitions occurs? I guess
I thought it always was 2 am local (which implies jumps from 02h-03h
and 02h-01h).
I believe several
Tom Van Baak said:
Can you send me a definitive URL with global TZ rules so I can grep|sort|uniq
to get a feel for when DST transitions occurs?
The following database:
https://www.iana.org/time-zones
is about as definitive as you will find.
I guess I thought it always was 2 am local (which
On Mon, Jun 1, 2015 at 9:19 PM, Pierpaolo Bernardi olopie...@gmail.com
wrote
In the EU, the change happens simultaneously in all countries at 01:00 UTC.
The following is an authoritative source:
http://eur-lex.europa.eu/legal-content/IT/TXT/?uri=CELEX:32000L0084
By the way, I noticed only
You'll need a faster car. Or a plane. Maybe we could get the guys on the
space station to try it?
Hi Brooks,
On the equator, timezones fly by about 1000 mph (earth diameter is ~25000
miles, day is ~24 hours). So that excludes cars and commercial planes.
Even up here at 45 degrees latitude,
On 2015-06-01 03:25 PM, Steve Allen wrote:
On Mon 2015-06-01T12:05:08 -0700, Tom Van Baak hath writ:
Can you send me a definitive URL with global TZ rules so I can
grep|sort|uniq to get a feel for when DST transitions occurs? I guess
I thought it always was 2 am local (which implies jumps from
Tom Van Baak said:
Oh, I wasn't thinking of cheating and adjusting timezones with a mouse click.
For maximum photo effect, I was planning to drive my mobile (car) time lab
across two time zones the night of June 30 and catch two Azure leap seconds.
Timezones are too wide to hit three in
Pierpaolo Bernardi said:
http://eur-lex.europa.eu/legal-content/IT/TXT/?uri=CELEX:32000L0084
By the way, I noticed only now that the English text says 01:00 GMT, while
the Italian text says 01:00 Tempo Universale.
It's worse than that. Of the 22 official texts:
BG, CS, EL, EN, ET, FI, HU, LT,
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