September 2010 - tz - lists.iana.org

FW: Time Zone in Paris
by Olson, Arthur David (NIH/NCI) [E] Sept. 25, 2010

Sept. 25, 2010

I'm forwarding this message from Katia, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado From: Katia [mailto:katia@astrologiainlinea.it] Sent: Wednesday, September 22, 2010 6:31 To: tz(a)lecserver.nci.nih.gov Subject: Time Zone in Paris Hello, we use your database to make astrological calculations. With regard to the time zone of Paris from 1945 to 1976 it results a strange data that conflicts over other resources credited as Shank, according to your database in 1971 the Time zone Paris was 0. Can you confirm this and show me the source? Thanks and good job Katia

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zic and zoneinfo.zip
by Ravindra Sept. 24, 2010

Sept. 24, 2010

We use tzcode and tzdata in our app. We are adding support for 64-bit platforms (Windows and Linux) in our app. I would like to know the right way to generate zoneinfo.zip from tzdata2010l.tar.gz (using "zic -d" command). I have following doubts: 1. Is it ok to use same zoneinfo.zip for 32-bit as well as 64-bit platform? 2. Do I need to build two zic (32-bit and 64-bit) binaries in order to generate separate zoneinfo.zip files for 32-bit and 64-bit platforms? 3. If same zoneinfo.zip can be used for both the platforms, which zic should I use to generate the zoneinfo.zip (32-bit zic or 64-bit zic)? Could someone please clarify my doubts above? Thanks in advance, Ravindra

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About China time zones
by Walter Korte Sept. 24, 2010

Sept. 24, 2010

To the maintainers of the tz database, We are using the TZ database in our navigation SW, and we have had feedback from our users in China that the time zone city names included do not make sense to local users. Neither Harbin, Shanghai nor Chungking (this is a very strange spelling, it is spelled Chongqing in Pinyin) is used in China to indicate a time zone. It would make most sense to remove these 3 entries and replace them with a single Beijing entry in the database. As HongKong and Macao are special administrative regions (SAR) in China, listing these makes sense. For the cities listed that are located in Xinjiang (Kashgar and Urumqi), these should not be listed as China only has one official time zone. But in practice Xinjiang uses its own time zone so keeping these would be better. Best regards, Walter Korte TomTom Asia

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FW: Time Zone in Paris
by Francis SANTONI Sept. 23, 2010

Sept. 23, 2010

Hello, France uses 'de facto' Eastern time zone 1h. This transition has occurred by a switch to summer time in February 1940. There never was back in the winter time at the time of the meridian of Greenwich. France adopted DST in 1976 (Official Decree number 75 866 on September 19, 1975) so that some say France uses a simple summer time in winter and double summer time in summer but in practice its official time for winter is UT + 1hr East and summer time is UT +2hr East. (Sorry but I do not understand the interest of abbreviations given to time zones). Francis Santoni, Paris

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Time Zone in Paris
by Katia Sept. 22, 2010

Sept. 22, 2010

Hello, we use your database to make astrological calculations. With regard to the time zone of Paris from 1945 to 1976 it results a strange data that conflicts over other resources credited as Shank, according to your database in 1971 the Time zone Paris was 0. Can you confirm this and show me the source? Thanks and good job Katia

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proposed time zone package changes (Hong Kong, Vostok, zic.c)
by Arthur David Olson Sept. 16, 2010

Sept. 16, 2010

Below find proposed changes to the time zone package; the executive summary: * asia No DST in Hong Kong in 1977 (thanks to Jesper Norgaard for finding the problem). * zic.c Conditionally output extra types with most-recently-used offsets last (for use by systems with pre-2011 versions of localtime.c, helping to ensure that globals "altzone" and "timezone" get set correctly). * zone.tab Remove obsolete association of Vostok Station with South Magnetic Pole; add association with Lake Vostok (thanks to Petr Machata for finding the problem). The "zic.c" changes result in some changed binary files, but the same output as with the current version of the package is produced by a "zdump -v all/files/in/the/zoneinfo/tree" If no problems are found, I plan to update the ftp versions on 2010-09-27. --ado diff -r -c old/asia new/asia *** old/asia Mon Aug 16 06:57:06 2010 --- new/asia Thu Sep 16 13:29:33 2010 *************** *** 1,4 **** ! # @(#)asia 8.61 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,4 ---- ! # @(#)asia 8.62 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 547,554 **** Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S Rule HK 1954 only - Oct 31 3:30 0 - Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - ! Rule HK 1965 1977 - Apr Sun>=16 3:30 1:00 S ! Rule HK 1965 1977 - Oct Sun>=16 3:30 0 - Rule HK 1973 only - Dec 30 3:30 1:00 S Rule HK 1979 only - May Sun>=8 3:30 1:00 S Rule HK 1979 only - Oct Sun>=16 3:30 0 - --- 547,554 ---- Rule HK 1954 1964 - Mar Sun>=18 3:30 1:00 S Rule HK 1954 only - Oct 31 3:30 0 - Rule HK 1955 1964 - Nov Sun>=1 3:30 0 - ! Rule HK 1965 1976 - Apr Sun>=16 3:30 1:00 S ! Rule HK 1965 1976 - Oct Sun>=16 3:30 0 - Rule HK 1973 only - Dec 30 3:30 1:00 S Rule HK 1979 only - May Sun>=8 3:30 1:00 S Rule HK 1979 only - Oct Sun>=16 3:30 0 - diff -r -c old/zic.c new/zic.c *** old/zic.c Mon Aug 16 06:57:05 2010 --- new/zic.c Thu Sep 16 14:55:31 2010 *************** *** 3,9 **** ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.20"; #include "private.h" #include "locale.h" --- 3,9 ---- ** 2006-07-17 by Arthur David Olson. */ ! static char elsieid[] = "@(#)zic.c 8.22"; #include "private.h" #include "locale.h" *************** *** 1621,1626 **** --- 1621,1672 ---- if (thistimei == 0) writetype[0] = TRUE; } + #ifndef LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH + /* + ** For some pre-2011 systems: if the last-to-be-written + ** standard (or daylight) type has an offset different from the + ** most recently used offset, + ** append an (unused) copy of the most recently used type + ** (to help get global "altzone" and "timezone" variables + ** set correctly). + */ + { + register int mrudst, mrustd, hidst, histd, type; + + hidst = histd = mrudst = mrustd = -1; + for (i = thistimei; i < thistimelim; ++i) + if (isdsts[types[i]]) + mrudst = types[i]; + else mrustd = types[i]; + for (i = 0; i < typecnt; ++i) + if (writetype[i]) + if (isdsts[i]) + hidst = i; + else histd = i; + if (hidst >= 0 && mrudst >= 0 && hidst != mrudst && + gmtoffs[hidst] != gmtoffs[mrudst]) { + isdsts[mrudst] = -1; + type = addtype(gmtoffs[mrudst], + &chars[abbrinds[mrudst]], + TRUE, + ttisstds[mrudst], + ttisgmts[mrudst]); + isdsts[mrudst] = TRUE; + writetype[type] = TRUE; + } + if (histd >= 0 && mrustd >= 0 && histd != mrustd && + gmtoffs[histd] != gmtoffs[mrustd]) { + isdsts[mrustd] = -1; + type = addtype(gmtoffs[mrustd], + &chars[abbrinds[mrustd]], + FALSE, + ttisstds[mrustd], + ttisgmts[mrustd]); + isdsts[mrustd] = FALSE; + writetype[type] = TRUE; + } + } + #endif /* !defined LEAVE_SOME_PRE_2011_SYSTEMS_IN_THE_LURCH */ thistypecnt = 0; for (i = 0; i < typecnt; ++i) typemap[i] = writetype[i] ? thistypecnt++ : -1; diff -r -c old/zone.tab new/zone.tab *** old/zone.tab Mon Aug 16 06:57:07 2010 --- new/zone.tab Thu Sep 16 13:29:34 2010 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.37 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.38 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 41,47 **** AQ -6736+06253 Antarctica/Mawson Mawson Station, Holme Bay AQ -6835+07758 Antarctica/Davis Davis Station, Vestfold Hills AQ -6617+11031 Antarctica/Casey Casey Station, Bailey Peninsula ! AQ -7824+10654 Antarctica/Vostok Vostok Station, S Magnetic Pole AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Terre Adelie AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I AQ -5430+15857 Antarctica/Macquarie Macquarie Island Station, Macquarie Island --- 41,47 ---- AQ -6736+06253 Antarctica/Mawson Mawson Station, Holme Bay AQ -6835+07758 Antarctica/Davis Davis Station, Vestfold Hills AQ -6617+11031 Antarctica/Casey Casey Station, Bailey Peninsula ! AQ -7824+10654 Antarctica/Vostok Vostok Station, Lake Vostok AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Terre Adelie AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I AQ -5430+15857 Antarctica/Macquarie Macquarie Island Station, Macquarie Island

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FW: Morroco studies a TZ core change due to Ramadan
by Olson, Arthur David (NIH/NCI) [E] Sept. 5, 2010

Sept. 5, 2010

I'm forwarding this message from Sébastien Willemijns, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado -----Original Message----- From: Sébastien WILLEMIJNS [mailto:sebastien@willemijns.com] Sent: Wednesday, August 18, 2010 4:51 To: tz(a)lecserver.nci.nih.gov Subject: Morroco studies a TZ core change due to Ramadan http://www.yabiladi.com/articles/details/3089/maroc-l-heure-d-ete-serait- elle-appliquee.html

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Israeli's Planning to ignore Standard Time
by TZ Member Sept. 3, 2010

Sept. 3, 2010

Thousands sign petition to disregard Standard Time shift http://www.ynetnews.com/Ext/Comp/ArticleLayout/CdaArticlePrintPreview/1,2506 ,L-3948283,00.html

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