forked from pool/timezone
- Update to 2013e:
time zone abbreviations since 1932
* Changes affecting Godthab time stamps after 2037 if version mismatch
* Changes affecting time stamps before 1970
* Changes affecting time zone abbreviations before 1970
* The 'leapseconds' file is now generated automatically from a
- Update to 2013e:
time zone abbreviations since 1932
* Changes affecting Godthab time stamps after 2037 if version mismatch
* Changes affecting time stamps before 1970
* Changes affecting time zone abbreviations before 1970
* The 'leapseconds' file is now generated automatically from a
OBS-URL: https://build.opensuse.org/package/show/Base:System/timezone?expand=0&rev=115
This commit is contained in:
Git OBS Bridge
parent
66d0614d2c
commit
73b7858e79
@ -1,229 +1,24 @@
|
||||
-------------------------------------------------------------------
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||||
Sat Sep 21 17:45:59 UTC 2013 - crrodriguez@opensuse.org
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- Changes affecting near-future time stamps
|
||||
|
||||
- Update to 2013e:
|
||||
This year Fiji will start DST on October 27, not October 20.
|
||||
(Thanks to David Wheeler for the heads-up.) For now, guess that
|
||||
Fiji will continue to spring forward the Sunday before the fourth
|
||||
Monday in October.
|
||||
|
||||
- Changes affecting current and future time zone abbreviations
|
||||
|
||||
Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian
|
||||
time zone abbreviations since 1932. (Thanks to George Ziegler,
|
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Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and
|
||||
Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura,
|
||||
Asia/Makassar, and Asia/Pontianak.
|
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time zone abbreviations since 1932
|
||||
|
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Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but
|
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daylight saving time) for San Luis, Argentina since 2009.
|
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|
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- Changes affecting Godthab time stamps after 2037 if version mismatch
|
||||
|
||||
Allow POSIX-like TZ strings where the transition time's hour can
|
||||
range from -167 through 167, instead of the POSIX-required 0
|
||||
through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the
|
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new Fiji rules. This is a more-compact way to represent
|
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far-future time stamps for America/Godthab, America/Santiago,
|
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Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem,
|
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Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by
|
||||
this change. (Derived from a suggestion by Arthur David Olson.)
|
||||
|
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Allow POSIX-like TZ strings where daylight saving time is in
|
||||
effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western
|
||||
Argentina Summer Time all year. This supports a more-compact way
|
||||
to represent the 2013d data for America/Argentina/San_Luis.
|
||||
Because of the change for San Luis noted above this change does not
|
||||
affect the current data. (Thanks to Andrew Main (Zefram) for
|
||||
suggestions that improved this change.)
|
||||
|
||||
Where these two TZ changes take effect, there is a minor extension
|
||||
to the tz file format in that it allows new values for the
|
||||
embedded TZ-format string, and the tz file format version number
|
||||
has therefore been increased from 2 to 3 as a precaution.
|
||||
Version-2-based client code should continue to work as before for
|
||||
all time stamps before 2038. Existing version-2-based client code
|
||||
(tzcode, GNU/Linux, Solaris) has been tested on version-3-format
|
||||
files, and typically works in practice even for time stamps after
|
||||
2037; the only known exception is America/Godthab.
|
||||
|
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Changes affecting time stamps before 1970
|
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|
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Pacific/Johnston is now a link to Pacific/Honolulu. This corrects
|
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some errors before 1947.
|
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|
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Some zones have been turned into links, when they differ from
|
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existing zones only in older data that was likely invented or that
|
||||
differs only in LMT or transition from LMT. These changes affect
|
||||
only time stamps before 1943. The affected zones are:
|
||||
Africa/Juba, America/Anguilla, America/Aruba, America/Dominica,
|
||||
America/Grenada, America/Guadeloupe, America/Marigot,
|
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America/Montserrat, America/St_Barthelemy, America/St_Kitts,
|
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America/St_Lucia, America/St_Thomas, America/St_Vincent,
|
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America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for
|
||||
confirming that the old Europe/Vaduz zone was wrong and the new
|
||||
link is better for WWII-era times.)
|
||||
|
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Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects
|
||||
America/Cayman, America/Jamaica and America/Grand_Turk time stamps
|
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from 1890 to 1912.
|
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|
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Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46.
|
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This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks
|
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to Alois Treindl).
|
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|
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Change the date of the circa-1850 Zurich transition from 1849-09-12
|
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to 1853-07-16, overriding Shanks with data from Messerli about
|
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postal and telegraph time in Switzerland.
|
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|
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Changes affecting time zone abbreviations before 1970
|
||||
|
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For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932,
|
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as Jakarta was called Batavia back then.
|
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|
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Changes affecting API
|
||||
|
||||
The 'zic' command now outputs a dummy transition when far-future
|
||||
data can't be summarized using a TZ string, and uses a 402-year
|
||||
window rather than a 400-year window. For the current data, this
|
||||
affects only the Asia/Tehran file. It does not affect any of the
|
||||
time stamps that this file represents, so zdump outputs the same
|
||||
information as before. (Thanks to Andrew Main (Zefram).)
|
||||
|
||||
The 'date' command has a new '-r' option, which lets you specify
|
||||
the integer time to display, a la FreeBSD.
|
||||
|
||||
The 'tzselect' command has two new options '-c' and '-n', which lets you
|
||||
select a zone based on latitude and longitude.
|
||||
|
||||
The 'zic' command's '-v' option now warns about constructs that
|
||||
require the new version-3 binary file format. (Thanks to Arthur
|
||||
David Olson for the suggestion.)
|
||||
|
||||
Support for floating-point time_t has been removed.
|
||||
It was always dicey, and POSIX no longer requires it.
|
||||
(Thanks to Eric Blake for suggesting to the POSIX committee to
|
||||
remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
|
||||
Heninger, Arthur David Olson, and Alois Treindl, for reporting
|
||||
bugs and elucidating some of the corners of the old floating-point
|
||||
implementation.)
|
||||
|
||||
The signatures of 'offtime', 'timeoff', and 'gtime' have been
|
||||
changed back to the old practice of using 'long' to represent UT
|
||||
offsets. This had been inadvertently and mistakenly changed to
|
||||
'int_fast32_t'. (Thanks to Christos Zoulos.)
|
||||
|
||||
The code avoids undefined behavior on integer overflow in some
|
||||
more places, including gmtime, localtime, mktime and zdump.
|
||||
|
||||
Changes affecting the zdump utility
|
||||
|
||||
zdump now outputs "UT" when referring to Universal Time, not "UTC".
|
||||
"UTC" does not make sense for time stamps that predate the introduction
|
||||
of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen
|
||||
for clarifying UT vs UTC.)
|
||||
|
||||
Data changes affecting behavior of tzselect and similar programs
|
||||
|
||||
Country code BQ is now called the more-common name "Caribbean Netherlands"
|
||||
rather than the more-official "Bonaire, St Eustatius & Saba".
|
||||
|
||||
Remove from zone.tab the names America/Montreal, America/Shiprock,
|
||||
and Antarctica/South_Pole, as they are equivalent to existing
|
||||
same-country-code zones for post-1970 time stamps. The data for
|
||||
these names are unchanged, so the names continue to work as before.
|
||||
|
||||
Changes affecting code internals
|
||||
|
||||
zic -c now runs way faster on 64-bit hosts when given large numbers.
|
||||
|
||||
zic now uses vfprintf to avoid allocating and freeing some memory.
|
||||
|
||||
tzselect now computes the list of continents from the data,
|
||||
rather than have it hard-coded.
|
||||
|
||||
Minor changes pacify GCC 4.7.3 and GCC 4.8.1.
|
||||
|
||||
Changes affecting the build procedure
|
||||
|
||||
The 'leapseconds' file is now generated automatically from a
|
||||
* Changes affecting Godthab time stamps after 2037 if version mismatch
|
||||
* Changes affecting time stamps before 1970
|
||||
* Changes affecting time zone abbreviations before 1970
|
||||
* The 'leapseconds' file is now generated automatically from a
|
||||
new file 'leap-seconds.list', which is a copy of
|
||||
<ftp://time.nist.gov/pub/leap-seconds.list>.
|
||||
A new source file 'leapseconds.awk' implements this.
|
||||
The goal is simplification of the future maintenance of 'leapseconds'.
|
||||
|
||||
When building the 'posix' or 'right' subdirectories, if the
|
||||
subdirectory would be a copy of the default subdirectory, it is
|
||||
now made a symbolic link if that is supported. This saves about
|
||||
2 MB of file system space.
|
||||
|
||||
The links America/Shiprock and Antarctica/South_Pole have been
|
||||
moved to the 'backward' file. This affects only nondefault builds
|
||||
that omit 'backward'.
|
||||
|
||||
Changes affecting version-control only
|
||||
|
||||
.gitignore now ignores 'date'.
|
||||
|
||||
Changes affecting documentation and commentary
|
||||
|
||||
Changes to the 'tzfile' man page
|
||||
|
||||
It now mentions that the binary file format may be extended in
|
||||
future versions by appending data.
|
||||
|
||||
It now refers to the 'zdump' and 'zic' man pages.
|
||||
|
||||
Changes to the 'zic' man page
|
||||
|
||||
It lists conditions that elicit a warning with '-v'.
|
||||
|
||||
It says that the behavior is unspecified when duplicate names
|
||||
are given, or if the source of one link is the target of another.
|
||||
|
||||
Its examples are updated to match the latest data.
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The definition of white space has been clarified slightly.
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(Thanks to Michael Deckers.)
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Changes to the 'Theory' file
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There is a new section about the accuracy of the tz database,
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describing the many ways that errors can creep in, and
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explaining why so many of the pre-1970 time stamps are wrong or
|
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misleading (thanks to Steve Allen, Lester Caine, and Garrett
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Wollman for discussions that contributed to this).
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The 'Theory' file describes LMT better (this follows a
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suggestion by Guy Harris).
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It refers to the 2013 edition of POSIX rather than the 2004 edition.
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It's mentioned that excluding 'backward' should not affect the
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other data, and it suggests at least one zone.tab name per
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inhabited country (thanks to Stephen Colebourne).
|
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|
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Some longstanding restrictions on names are documented, e.g.,
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'America/New_York' precludes 'America/New_York/Bronx'.
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It gives more reasons for the 1970 cutoff.
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|
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It now mentions which time_t variants are supported, such as
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signed integer time_t. (Thanks to Paul Goyette for reporting
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typos in an experimental version of this change.)
|
||||
|
||||
(Thanks to Philip Newton for correcting typos in these changes.)
|
||||
|
||||
Documentation and commentary is more careful to distinguish UT in
|
||||
general from UTC in particular. (Thanks to Steve Allen.)
|
||||
|
||||
Add a better source for the Zurich 1894 transition.
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||||
(Thanks to Pierre-Yves Berger.)
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Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.)
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||||
-------------------------------------------------------------------
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||||
Mon Jul 8 17:28:01 UTC 2013 - dmueller@suse.com
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||||
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||||
|
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217
timezone.changes
217
timezone.changes
@ -1,229 +1,24 @@
|
||||
-------------------------------------------------------------------
|
||||
Sat Sep 21 17:45:59 UTC 2013 - crrodriguez@opensuse.org
|
||||
|
||||
- Changes affecting near-future time stamps
|
||||
|
||||
- Update to 2013e:
|
||||
This year Fiji will start DST on October 27, not October 20.
|
||||
(Thanks to David Wheeler for the heads-up.) For now, guess that
|
||||
Fiji will continue to spring forward the Sunday before the fourth
|
||||
Monday in October.
|
||||
|
||||
- Changes affecting current and future time zone abbreviations
|
||||
|
||||
Use WIB/WITA/WIT rather than WIT/CIT/EIT for alphabetic Indonesian
|
||||
time zone abbreviations since 1932. (Thanks to George Ziegler,
|
||||
Priyadi Iman Nurcahyo, Zakaria, Jason Grimes, Martin Pitt, and
|
||||
Benny Lin.) This affects Asia/Dili, Asia/Jakarta, Asia/Jayapura,
|
||||
Asia/Makassar, and Asia/Pontianak.
|
||||
time zone abbreviations since 1932
|
||||
|
||||
Use ART (UTC-3, standard time), rather than WARST (also UTC-3, but
|
||||
daylight saving time) for San Luis, Argentina since 2009.
|
||||
|
||||
- Changes affecting Godthab time stamps after 2037 if version mismatch
|
||||
|
||||
Allow POSIX-like TZ strings where the transition time's hour can
|
||||
range from -167 through 167, instead of the POSIX-required 0
|
||||
through 24. E.g., TZ='FJT-12FJST,M10.3.1/146,M1.3.4/75' for the
|
||||
new Fiji rules. This is a more-compact way to represent
|
||||
far-future time stamps for America/Godthab, America/Santiago,
|
||||
Antarctica/Palmer, Asia/Gaza, Asia/Hebron, Asia/Jerusalem,
|
||||
Pacific/Easter, and Pacific/Fiji. Other zones are unaffected by
|
||||
this change. (Derived from a suggestion by Arthur David Olson.)
|
||||
|
||||
Allow POSIX-like TZ strings where daylight saving time is in
|
||||
effect all year. E.g., TZ='WART4WARST,J1/0,J365/25' for Western
|
||||
Argentina Summer Time all year. This supports a more-compact way
|
||||
to represent the 2013d data for America/Argentina/San_Luis.
|
||||
Because of the change for San Luis noted above this change does not
|
||||
affect the current data. (Thanks to Andrew Main (Zefram) for
|
||||
suggestions that improved this change.)
|
||||
|
||||
Where these two TZ changes take effect, there is a minor extension
|
||||
to the tz file format in that it allows new values for the
|
||||
embedded TZ-format string, and the tz file format version number
|
||||
has therefore been increased from 2 to 3 as a precaution.
|
||||
Version-2-based client code should continue to work as before for
|
||||
all time stamps before 2038. Existing version-2-based client code
|
||||
(tzcode, GNU/Linux, Solaris) has been tested on version-3-format
|
||||
files, and typically works in practice even for time stamps after
|
||||
2037; the only known exception is America/Godthab.
|
||||
|
||||
Changes affecting time stamps before 1970
|
||||
|
||||
Pacific/Johnston is now a link to Pacific/Honolulu. This corrects
|
||||
some errors before 1947.
|
||||
|
||||
Some zones have been turned into links, when they differ from
|
||||
existing zones only in older data that was likely invented or that
|
||||
differs only in LMT or transition from LMT. These changes affect
|
||||
only time stamps before 1943. The affected zones are:
|
||||
Africa/Juba, America/Anguilla, America/Aruba, America/Dominica,
|
||||
America/Grenada, America/Guadeloupe, America/Marigot,
|
||||
America/Montserrat, America/St_Barthelemy, America/St_Kitts,
|
||||
America/St_Lucia, America/St_Thomas, America/St_Vincent,
|
||||
America/Tortola, and Europe/Vaduz. (Thanks to Alois Treindl for
|
||||
confirming that the old Europe/Vaduz zone was wrong and the new
|
||||
link is better for WWII-era times.)
|
||||
|
||||
Change Kingston Mean Time from -5:07:12 to -5:07:11. This affects
|
||||
America/Cayman, America/Jamaica and America/Grand_Turk time stamps
|
||||
from 1890 to 1912.
|
||||
|
||||
Change the UT offset of Bern Mean Time from 0:29:44 to 0:29:46.
|
||||
This affects Europe/Zurich time stamps from 1853 to 1894. (Thanks
|
||||
to Alois Treindl).
|
||||
|
||||
Change the date of the circa-1850 Zurich transition from 1849-09-12
|
||||
to 1853-07-16, overriding Shanks with data from Messerli about
|
||||
postal and telegraph time in Switzerland.
|
||||
|
||||
Changes affecting time zone abbreviations before 1970
|
||||
|
||||
For Asia/Jakarta, use BMT (not JMT) for mean time from 1923 to 1932,
|
||||
as Jakarta was called Batavia back then.
|
||||
|
||||
Changes affecting API
|
||||
|
||||
The 'zic' command now outputs a dummy transition when far-future
|
||||
data can't be summarized using a TZ string, and uses a 402-year
|
||||
window rather than a 400-year window. For the current data, this
|
||||
affects only the Asia/Tehran file. It does not affect any of the
|
||||
time stamps that this file represents, so zdump outputs the same
|
||||
information as before. (Thanks to Andrew Main (Zefram).)
|
||||
|
||||
The 'date' command has a new '-r' option, which lets you specify
|
||||
the integer time to display, a la FreeBSD.
|
||||
|
||||
The 'tzselect' command has two new options '-c' and '-n', which lets you
|
||||
select a zone based on latitude and longitude.
|
||||
|
||||
The 'zic' command's '-v' option now warns about constructs that
|
||||
require the new version-3 binary file format. (Thanks to Arthur
|
||||
David Olson for the suggestion.)
|
||||
|
||||
Support for floating-point time_t has been removed.
|
||||
It was always dicey, and POSIX no longer requires it.
|
||||
(Thanks to Eric Blake for suggesting to the POSIX committee to
|
||||
remove it, and thanks to Alan Barrett, Clive D.W. Feather, Andy
|
||||
Heninger, Arthur David Olson, and Alois Treindl, for reporting
|
||||
bugs and elucidating some of the corners of the old floating-point
|
||||
implementation.)
|
||||
|
||||
The signatures of 'offtime', 'timeoff', and 'gtime' have been
|
||||
changed back to the old practice of using 'long' to represent UT
|
||||
offsets. This had been inadvertently and mistakenly changed to
|
||||
'int_fast32_t'. (Thanks to Christos Zoulos.)
|
||||
|
||||
The code avoids undefined behavior on integer overflow in some
|
||||
more places, including gmtime, localtime, mktime and zdump.
|
||||
|
||||
Changes affecting the zdump utility
|
||||
|
||||
zdump now outputs "UT" when referring to Universal Time, not "UTC".
|
||||
"UTC" does not make sense for time stamps that predate the introduction
|
||||
of UTC, whereas "UT", a more-generic term, does. (Thanks to Steve Allen
|
||||
for clarifying UT vs UTC.)
|
||||
|
||||
Data changes affecting behavior of tzselect and similar programs
|
||||
|
||||
Country code BQ is now called the more-common name "Caribbean Netherlands"
|
||||
rather than the more-official "Bonaire, St Eustatius & Saba".
|
||||
|
||||
Remove from zone.tab the names America/Montreal, America/Shiprock,
|
||||
and Antarctica/South_Pole, as they are equivalent to existing
|
||||
same-country-code zones for post-1970 time stamps. The data for
|
||||
these names are unchanged, so the names continue to work as before.
|
||||
|
||||
Changes affecting code internals
|
||||
|
||||
zic -c now runs way faster on 64-bit hosts when given large numbers.
|
||||
|
||||
zic now uses vfprintf to avoid allocating and freeing some memory.
|
||||
|
||||
tzselect now computes the list of continents from the data,
|
||||
rather than have it hard-coded.
|
||||
|
||||
Minor changes pacify GCC 4.7.3 and GCC 4.8.1.
|
||||
|
||||
Changes affecting the build procedure
|
||||
|
||||
The 'leapseconds' file is now generated automatically from a
|
||||
* Changes affecting Godthab time stamps after 2037 if version mismatch
|
||||
* Changes affecting time stamps before 1970
|
||||
* Changes affecting time zone abbreviations before 1970
|
||||
* The 'leapseconds' file is now generated automatically from a
|
||||
new file 'leap-seconds.list', which is a copy of
|
||||
<ftp://time.nist.gov/pub/leap-seconds.list>.
|
||||
A new source file 'leapseconds.awk' implements this.
|
||||
The goal is simplification of the future maintenance of 'leapseconds'.
|
||||
|
||||
When building the 'posix' or 'right' subdirectories, if the
|
||||
subdirectory would be a copy of the default subdirectory, it is
|
||||
now made a symbolic link if that is supported. This saves about
|
||||
2 MB of file system space.
|
||||
|
||||
The links America/Shiprock and Antarctica/South_Pole have been
|
||||
moved to the 'backward' file. This affects only nondefault builds
|
||||
that omit 'backward'.
|
||||
|
||||
Changes affecting version-control only
|
||||
|
||||
.gitignore now ignores 'date'.
|
||||
|
||||
Changes affecting documentation and commentary
|
||||
|
||||
Changes to the 'tzfile' man page
|
||||
|
||||
It now mentions that the binary file format may be extended in
|
||||
future versions by appending data.
|
||||
|
||||
It now refers to the 'zdump' and 'zic' man pages.
|
||||
|
||||
Changes to the 'zic' man page
|
||||
|
||||
It lists conditions that elicit a warning with '-v'.
|
||||
|
||||
It says that the behavior is unspecified when duplicate names
|
||||
are given, or if the source of one link is the target of another.
|
||||
|
||||
Its examples are updated to match the latest data.
|
||||
|
||||
The definition of white space has been clarified slightly.
|
||||
(Thanks to Michael Deckers.)
|
||||
|
||||
Changes to the 'Theory' file
|
||||
|
||||
There is a new section about the accuracy of the tz database,
|
||||
describing the many ways that errors can creep in, and
|
||||
explaining why so many of the pre-1970 time stamps are wrong or
|
||||
misleading (thanks to Steve Allen, Lester Caine, and Garrett
|
||||
Wollman for discussions that contributed to this).
|
||||
|
||||
The 'Theory' file describes LMT better (this follows a
|
||||
suggestion by Guy Harris).
|
||||
|
||||
It refers to the 2013 edition of POSIX rather than the 2004 edition.
|
||||
|
||||
It's mentioned that excluding 'backward' should not affect the
|
||||
other data, and it suggests at least one zone.tab name per
|
||||
inhabited country (thanks to Stephen Colebourne).
|
||||
|
||||
Some longstanding restrictions on names are documented, e.g.,
|
||||
'America/New_York' precludes 'America/New_York/Bronx'.
|
||||
|
||||
It gives more reasons for the 1970 cutoff.
|
||||
|
||||
It now mentions which time_t variants are supported, such as
|
||||
signed integer time_t. (Thanks to Paul Goyette for reporting
|
||||
typos in an experimental version of this change.)
|
||||
|
||||
(Thanks to Philip Newton for correcting typos in these changes.)
|
||||
|
||||
Documentation and commentary is more careful to distinguish UT in
|
||||
general from UTC in particular. (Thanks to Steve Allen.)
|
||||
|
||||
Add a better source for the Zurich 1894 transition.
|
||||
(Thanks to Pierre-Yves Berger.)
|
||||
|
||||
Update shapefile citations in tz-link.htm. (Thanks to Guy Harris.)
|
||||
|
||||
|
||||
-------------------------------------------------------------------
|
||||
Mon Jul 8 17:28:01 UTC 2013 - dmueller@suse.com
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user