- tz - lists.iana.org

Cuba changing DST spring switch date this year to equal the US
by Paul Eggert March 3, 2007

March 3, 2007

On Wednesday, Granma, the official organ of the central committee of the Communist Party of Cuba, wrote that this year Cuba will advance its clocks on midnight, March 10. See <http://www.granma.cubaweb.cu/english/news/art89.html>. The official announcement was published (in Spanish) yesterday <http://www.granma.cubaweb.cu/2007/03/01/nacional/artic01.html>. The announcement doesn't say when the clocks switch back, but for lack of better info I guess we should assume that Cuba will use the US dates for spring and autumn, but switch at midnight standard time, which is their recent tradition. I'll send out a proposed patch soon. PS. I still haven't been able to find any official confirmation for the theory that Haiti will not observe DST this year. The IATA and timeanddate.com are consistent with this theory, but worldtimezone.com disagrees.

1 0

Nunavut (2007)
by Chris Walton March 2, 2007

March 2, 2007

Looks like Nunavut (Territory in northern Canada) has finally decided to follow the rest of Canada and the United States. An amendment to the Interpretation Act was registered on February 19/2007. See page 18 of February's the Nunavut Gazette: http://action.attavik.ca/home/justice-gn/attach/2007/gaz02part2.pdf All of the assumptions that were made in the TZ database are now correct; no further changes are required. As per usual, I have updated my Canadian DST web page at http://www3.sympatico.ca/c.walton/canada_dst.html P.S. I came accross a little news article from Northern News Services dated November 13/2006. It claims that the community of Resolute (located on Conrnwallis Island in Nunavut) moved from Central Time to Eastern Time last November. Basically the community did not change its clocks at the end of daylight saving. It is not clear whether or not the clocks will change again on March 11 of if they will stay fixed on Eastern Standard Time. Technically this requires a new zone. Ouch. Is it worth it for a population of of 215 people? http://www.nnsl.com/frames/newspapers/2006-11/nov13_06none.html -chris

3 2

Atlantic/Faroe DST
by michael March 2, 2007

March 2, 2007

Hello, According to wikipedia authors, DST is observed in Faroe Islands. http://en.wikipedia.org/wiki/Faroe_islands According to TZ, it is not: Atlantic/Faroe Sat Dec 14 20:45:52 1901 UTC = Sat Dec 14 20:45:52 1901 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Mon Jan 18 03:14:07 2038 UTC = Mon Jan 18 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 Atlantic/Faroe Tue Jan 19 03:14:07 2038 UTC = Tue Jan 19 03:14:07 2038 Atlantic/Faroe isdst=0 gmtoff=0 I don't have any additional evidence to say which is correct, but I thought it worth noting. Thanks, Michael

1 0

zdump -v segfault on alpha
by Gilles Espinasse Feb. 28, 2007

Feb. 28, 2007

zdump -v does not correctly work on alpha. cat /proc/cpuinfo cpu : Alpha cpu model : EV45 cpu variation : 7 cpu revision : 0 cpu serial number : system type : Avanti system variation : 0 system revision : 0 system serial number : AY cycle frequency [Hz] : 267895671 est. timer frequency [Hz] : 1024.00 page size [bytes] : 8192 phys. address bits : 34 max. addr. space # : 63 BogoMIPS : 529.40 kernel unaligned acc : 0 (pc=0,va=0) user unaligned acc : 0 (pc=0,va=0) platform string : AlphaServer 300 4/266 Tested with zdump 7.64 and the last available version 8.3 on tzcode2007b.tar.gz My report is #412569 against libc-2.3.2.ds1-22sarge5 and gcc-3.3.5-13 on debian BTS After compilation of zdump from tzcode2007b.tar.gz with make zdump alpha300:~# ./zdump --version @(#)zdump.c 8.3 alpha300:~# ./zdump -v /etc/localtime /etc/localtime -9223372036854775808 = NULL /etc/localtime -9223372036854689408 = NULL As it fail too with this last zdump available, I would think I need to report it there too. I find other report related to 64bits arch on debian BTS #266438: zdump -v causes core dump on IA64 Linux Package: libc6.1 (2.2.5-11.2; fixed: glibc 2.3.5-3); #402776: zdump -v errors on 64 bit architectures Package: libc6.1 (glibc 2.3.6.ds1-8, 2.3.6.ds1-10); Gilles

2 3

FW: New DST Rules for 2007
by Olson, Arthur David (NIH/NCI) [E] Feb. 27, 2007

Feb. 27, 2007

I'm forwarding this message form Bryan O'Neill, who is not on the time zone mailing list. Those of you who are on the time zone mailing list should direct replies appropriately. --ado ________________________________ From: Bryan O'Neill, President [mailto:support@wake123.com] Sent: Tuesday, February 27, 2007 11:08 AM To: tz(a)lecserver.nci.nih.gov Subject: New DST Rules for 2007 Ladies & Gentlemen, I asked a question on linuxquestions.org about what exact commands I would need to install your patch that will update the new DST rules on my RH 8.0 pc. One guy responded with the following: ]$ cd /tmp && { mkdir tz && cd tz || exit 1; } wget -q 'ftp://elsie.nci.nih.gov/pub/tz*.tar.gz' || exit ]$ gzip -dc tzcode*.tar.gz | tar -xf - ]$ gzip -dc tzdata*.tar.gz | tar -xf - ]$ which nawk >/dev/null 2>&1|| { sed -i 's|nawk|gawk|g' Makefile || exit 1; } ]$ LOCALTIMEVAR0=`grep ^ZONE= /etc/sysconfig/clock 2>/dev/null| awk -F'=' '{print $2}'|tr -d '"'` ]$ LOCALTIMEVAR1=`make zonenames 2>/dev/null|grep -m1 $LOCALTIMEVAR0|awk '{print $1}'` ]$ [ -n $LOCALTIMEVAR1 ] || exit 1 && { sed -i "s|Factory|$LOCALTIMEVAR1|g" Makefile \ && make install; echo 'Done!'; } The blue code I've already done and I understand. But what about the green code? Do you see anything there that may create something malcious or unsecure? I don't think so but I wanted to get your more educated & trusted opinion. Is it correct for east coast time zone (New York)? Thanks! -Bryan

2 1

New DST Rules for 2007
by Bryan O'Neill, President Feb. 27, 2007

Feb. 27, 2007

GlacierLadies & Gentlemen, I asked a question on linuxquestions.org about what exact commands I would need to install your patch that will update the new DST rules on my RH 8.0 pc. One guy responded with the following: ]$ cd /tmp && { mkdir tz && cd tz || exit 1; } wget -q 'ftp://elsie.nci.nih.gov/pub/tz*.tar.gz' || exit ]$ gzip -dc tzcode*.tar.gz | tar -xf - ]$ gzip -dc tzdata*.tar.gz | tar -xf - ]$ which nawk >/dev/null 2>&1|| { sed -i 's|nawk|gawk|g' Makefile || exit 1; } ]$ LOCALTIMEVAR0=`grep ^ZONE= /etc/sysconfig/clock 2>/dev/null| awk -F'=' '{print $2}'|tr -d '"'` ]$ LOCALTIMEVAR1=`make zonenames 2>/dev/null|grep -m1 $LOCALTIMEVAR0|awk '{print $1}'` ]$ [ -n $LOCALTIMEVAR1 ] || exit 1 && { sed -i "s|Factory|$LOCALTIMEVAR1|g" Makefile \ && make install; echo 'Done!'; } The blue code I've already done and I understand. But what about the green code? Do you see anything there that may create something malcious or unsecure? I don't think so but I wanted to get your more educated & trusted opinion. Is it correct for east coast time zone (New York)? Thanks! -Bryan

1 0

No more daylight saving time in Mongolia
by Ganbold Feb. 27, 2007

Feb. 27, 2007

Dear sir, Sorry for making trouble. Parliament of Mongolia has just changed the daylight-saving rule in February. They decided not to adopt daylight-saving time. Could you please make appropriate changes to asia zone file? Following lines: Rule Mongol 2001 max - Sep lastSat 2:00 0 - Rule Mongol 2002 max - Mar lastSat 2:00 1:00 S could be changed to: Rule Mongol 2001 2006 - Sep lastSat 2:00 0 - Rule Mongol 2002 2006 - Mar lastSat 2:00 1:00 S Maybe I'm wrong here. Please let me know if you have any questions. sincerely, Ganbold Ts. Mongolia

1 0

mid-atlantic zoneinfo
by Jing Jiang Feb. 26, 2007

Feb. 26, 2007

Hi there, I couldn't find the zoneinfo about Mid-Atlantic. Do we miss this zone info? Where can I find this information? Thanks, Jing Jiang Senior Software Engineer Converged Access Inc 309 - 1100 NW Compton Drive Beaverton, OR 97006 Web: http://www.convergedaccess.com <http://www.convergedaccess.com/>

1 0

FW: Addition to tz compiler list
by Olson, Arthur David (NIH/NCI) [E] Feb. 26, 2007

Feb. 26, 2007

I'm forwarding this message from Doug Day who's not on the time zone mailing list (at least not at the address show below). Those of you who are on the time zone mailing list should direct replies appropriately. --ado ________________________________ From: Doug Day [mailto:doug@ddaysoftware.com] Sent: Friday, February 23, 2007 1:52 PM To: tz(a)lecserver.nci.nih.gov Subject: Addition to tz compiler list I've created a tz-database converter called tziCal which takes the tz database files and compiles them into a single iCalendar (.ics) file that is compliant with RFC 2445. This program is similar to VZIC, except it is built with the .NET Framework 2.0, and has a pre-built tool for compiling these files. I just wanted to let everyone know another tool existed. Thanks, -Doug Day CONFIDENTIALITY NOTICE: This electronic transmission may contain confidential information. This information is intended for the use of the individual(s) or entity to whom it is intended, even if addressed incorrectly. This information should not be read, given or made accessible to anyone else. Please delete it from your files if you are not the intended recipient. If you have received this electronic transmission in error, please notify the sender immediately via the address shown. Thank you for your compliance.

2 1

FW: Where is the US location
by Olson, Arthur David (NIH/NCI) [E] Feb. 26, 2007

Feb. 26, 2007

I'm forwarding this message from David Cyl, who is not on the time zone mailing list. Those of you who are on the time zone mailing list should direct replies appropriately. --ado -----Original Message----- From: David Cyl [mailto:davecyl@aps.anl.gov] Sent: Thursday, February 22, 2007 6:34 PM To: tz(a)lecserver.nci.nih.gov Subject: Where is the US location I was successful in compiling the timezones for north America but I did not get a directory for US where the Central, Pacific etc data is kept. Am I doing something wrong? Dave Cyl

2 1

FW: Change history for tzdata
by Olson, Arthur David (NIH/NCI) [E] Feb. 26, 2007

Feb. 26, 2007

I'm forwarding this message from Paul Beadle who is not on the time zone mailing list. Those of you who are on the time zone mailing list should direct replies appropriately. --ado ________________________________ From: Paul Beadle [mailto:paul.beadle@orchestria.com] Sent: Friday, February 23, 2007 7:43 AM To: tz(a)lecserver.nci.nih.gov Subject: Change history for tzdata Can anyone help me find the change history for tz data? I'd like to know which tzdata updates contain which changes. Paul Beadle Principal Software Engineer Orchestria Good Controls are Good Business

2 1

Tzcode2007c.tar.gz and tzdata2007c.tar.gz
by Olson, Arthur David (NIH/NCI) [E] Feb. 26, 2007

Feb. 26, 2007

The files... ftp://elsie.nci.nih.gov/pub/tzcode2007c.tar.gz ...and... ftp://elsie.nci.nih.gov/pub/tzdata2007c.tar.gz ...are now available; these reflect the proposed changes circulated on the time zone mailing list last week by Paul Eggert. --ado

1 0

FW: tziCal
by Olson, Arthur David (NIH/NCI) [E] Feb. 26, 2007

Feb. 26, 2007

A second message from Doug Day. --ado ________________________________ From: Doug Day [mailto:doug@ddaysoftware.com] Sent: Friday, February 23, 2007 1:53 PM To: tz(a)lecserver.nci.nih.gov Subject: tziCal I forgot to add - tziCal is a SourceForge project, located at http://sf.net/projects/tzical. Thanks, -Doug Day CONFIDENTIALITY NOTICE: This electronic transmission may contain confidential information. This information is intended for the use of the individual(s) or entity to whom it is intended, even if addressed incorrectly. This information should not be read, given or made accessible to anyone else. Please delete it from your files if you are not the intended recipient. If you have received this electronic transmission in error, please notify the sender immediately via the address shown. Thank you for your compliance.

1 0

Fw: DST rules for Istanbul, Turkey
by Nirav Jk Vora Feb. 26, 2007

Feb. 26, 2007

Hi All, Please can someone provide their inputs here? With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ----- Forwarded by Nirav Jk Vora/India/IBM on 02/26/2007 08:59 AM ----- Nirav Jk Vora/India/IBM 02/21/2007 09:57 AM To "Olson, Arthur David $NIH/NCI$ [E]" <olsona(a)dc37a.nci.nih.gov> cc tz(a)elsie.nci.nih.gov Subject Re: FW: DST rules for Istanbul, Turkey Hi All, Your inputs here will be greatly appreciated. Having not heard from a long time, could someone please comment on the below mail? With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------ "Olson, Arthur David $NIH/NCI$ [E]" <olsona(a)dc37a.nci.nih.gov> 02/15/2007 07:23 PM To <tz(a)elsie.nci.nih.gov> cc Nirav Jk Vora/India/IBM@IBMIN Subject FW: DST rules for Istanbul, Turkey I'm forwarding this message from Nirav Vora, who is not on the time zone mailing list. Those of you who are on the tme zone mailing list should direct replies appropriately. --ado ________________________________ From: Nirav Jk Vora [mailto:nirav.vora@in.ibm.com] Sent: Tuesday, February 13, 2007 9:52 PM To: tz(a)lecserver.nci.nih.gov Subject: Fw: DST rules for Istanbul, Turkey Importance: High Hi All, Just following up to see if someone could provide some inputs to my previous mail which is below. Just wanted to check as this is urgent for the customer. With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------ ----- Forwarded by Nirav Jk Vora/India/IBM on 02/14/2007 08:19 AM ----- Nirav Jk Vora/India/IBM 02/10/2007 08:41 AM To tz(a)elsie.nci.nih.gov cc Subject Re: DST rules for Istanbul, TurkeyLink < Notes://d23m0066/6525701E0082C7B6/691A46CAF425A77B6525727500111FC3/9DB5E329E2A52B24652572750034A74E > Hi All, Thank you all for your replies. I have gone back conveying the same to the customer. Here is what they have had to say: ------------------------------------------------------------------------------------- According to following link; http://wwp.greenwichmeantime.com/time-zone/europe/european-union/turkey/ turkey time zone settings are as follow which is valid now. Standard Time = GMT+2 Summer Time = GMT+3 According to following link; http://www.timeanddate.com/worldclock/timezone.html?n=107&syear=2000 29 Ekim 2006 Pazar, 01:59:59 1 hour +3 hours EEST 29 Ekim 2006 Pazar, 01:00:00 No +2 hours EET DST ends 25 Mart 2007 Pazar, 00:59:59 No +2 hours EET 25 Mart 2007 Pazar, 02:00:00 1 hour +3 hours EEST DST starts which is consistent with the previous information. To support the below information,I have taken the official newspaper of the government which had declared to regulate the time settings.I have talked with the staff of the government. They said that this declaration is the last daylight saving declaration announced by the government with official newspaper and today rules are valid for this declaration. I am sending the image of the fax that is sent by the government. The newspaper is normally in Turkish. I want to explain it briefly: "26 Mart 2000 Pazar günü saat 01:00'den itibaren bir saat ileri al?nmas?" means "clocks will be set 1 hour forward (will be GMT+3 ) on 26 March 2000 Sunday at 01:00" 01:00 is the local time (23:00 GMT Saturday) and "29 Ekim 200 Pazar günü saat 02:00'den itibaren bir saat geri al?nmas?" means "clocks will be set 1 hour back (will be GMT+2 ) on 29 October 2000 Sunday at 02:00" 02:00 is the local time (23:00 GMT Satruday) I think these documents are enough to show the daylight saving policy of Turkey is: Standard Time = GMT+2 Summer Time = GMT+3 ---------------------------------------------------------------------------------------------------------- So to summarize, the customer has provided a citation from the turkish government which tells about the latest DST rules. I have attached the jpg in this mail. Please review the same and provide your inputs as to whether this information would suffice to change the database timezone rules for Turkey. With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------ Peter Ilieve <peter(a)aldie.co.uk> 02/01/2007 02:58 PM To Nirav Jk Vora/India/IBM@IBMIN cc tz(a)elsie.nci.nih.gov Subject Re: DST rules for Istanbul, Turkey > Thanks, but that link says Turkish DST starts at 01:00 GMT (i.e., at > 03:00 local time) and ends at 01:00 GMT (i.e., at 04:00 local time). > This agrees with the current tz database. But Amar Devegowda reported > that Turkish DST actually starts at 01:00 local time and ends at 02:00 > local time. Steffen Thorsen of timeanddate.com agreed, and cited > Turkish newspaper reports from 1996 through 2001. > > I'm inclined to go with Devegowda and Thorsen, but what would be > helpful is an official source (e.g., a citation from Turkish law) that > says exactly when this practice started. So far, all we know is that > the current Turkish practice started before 1996, which is a bit > vague. I don't have any authoritative source but I can add a little context to this. Turkey is attempting to join the European Union (it's listed as a candidate country on the <http://wwp.greenwichmeantime.com/time-zone/europe/european-union/> page). This is proving a long and painful process. It may be that Turkey has officially switched to the EU 01:00 UTC clock change time recently as part of this EU application process. It may be that the website is just confused, showing all pages under the european-union directory as using EU rules even if they don't. I would also go with Devegowda and Thorsen, mainly on the basis that I think it's very unlikely that a country that far east would use 01:00 UTC unless forced to by something like EU rules. Newspaper reports of 01:00 local time are much more credible. Peter Ilieve peter(a)aldie.co.uk

1 0

FW: Haiti and Saint Pierre and Miquelon
by Olson, Arthur David (NIH/NCI) [E] Feb. 24, 2007

Feb. 24, 2007

I'm forwarding this message from Stephen Colebourne, who is not on the time zone mailing list (at least not at the address below). Those of you who are on the time zone mailing list: please direct replies appropriately. Thanks! --ado -----Original Message----- From: Stephen Colebourne [mailto:scolebourne@joda.org] Sent: Thursday, February 22, 2007 1:05 PM To: tz(a)lecserver.nci.nih.gov Subject: Haiti and Saint Pierre and Miquelon Hi Some IATA info: Haiti won't be having DST in 2007: Country Time Standard - - - DST Start - - - - - - DST End - - - DST Name Zone Variation Time Date Time Date Variation Haiti HT -0500 Saint Pierre and Miquelon will match the US and Canada: Country Time Standard - - - DST Start - - - - - - DST End - - - DST Name Zone Variation Time Date Time Date Variation Saint Pierre PM and Miquelon -0300 0500 11MAR07 0400 04NOV07 -0200 0500 09MAR08 0400 02NOV08 -0200 0500 08MAR09 0400 01NOV09 -0200 Stephen

3 2

Guatemala has decided not to observe DST this year
by Paul Eggert Feb. 24, 2007

Feb. 24, 2007

Guatemala had been toying with the idea of observing DST this year, but on Tuesday the Cabinet of Ministers of Guatemala decided not to. So we shouldn't need to change the tz database in this area. Reference: Eduardo Smith, Confirman que no habra cambio de hora, PrensaLibre.com <http://www.prensalibre.com/pl/2007/febrero/21/164014.html> (2007-02-21).

1 0

tziCal
by Doug Day Feb. 23, 2007

Feb. 23, 2007

I forgot to add - tziCal is a SourceForge project, located at http://sf.net/projects/tzical. Thanks, -Doug Day CONFIDENTIALITY NOTICE: This electronic transmission may contain confidential information. This information is intended for the use of the individual(s) or entity to whom it is intended, even if addressed incorrectly. This information should not be read, given or made accessible to anyone else. Please delete it from your files if you are not the intended recipient. If you have received this electronic transmission in error, please notify the sender immediately via the address shown. Thank you for your compliance.

1 0

Addition to tz compiler list
by Doug Day Feb. 23, 2007

Feb. 23, 2007

I've created a tz-database converter called tziCal which takes the tz database files and compiles them into a single iCalendar (.ics) file that is compliant with RFC 2445. This program is similar to VZIC, except it is built with the .NET Framework 2.0, and has a pre-built tool for compiling these files. I just wanted to let everyone know another tool existed. Thanks, -Doug Day CONFIDENTIALITY NOTICE: This electronic transmission may contain confidential information. This information is intended for the use of the individual(s) or entity to whom it is intended, even if addressed incorrectly. This information should not be read, given or made accessible to anyone else. Please delete it from your files if you are not the intended recipient. If you have received this electronic transmission in error, please notify the sender immediately via the address shown. Thank you for your compliance.

1 0

Change history for tzdata
by Paul Beadle Feb. 23, 2007

Feb. 23, 2007

Can anyone help me find the change history for tz data? I'd like to know which tzdata updates contain which changes. Paul Beadle Principal Software Engineer Orchestria Good Controls are Good Business

1 0

Where is the US location
by David Cyl Feb. 22, 2007

Feb. 22, 2007

I was successful in compiling the timezones for north America but I did not get a directory for US where the Central, Pacific etc data is kept. Am I doing something wrong? Dave Cyl

1 0

proposed tz changes for Turkey, Indiana, Easter I., zic.8, URLs
by Paul Eggert Feb. 22, 2007

Feb. 22, 2007

Here are proposed changes for the tz database. The most pressing changes are for Turkey and Pulaski County, Indiana, as they affect clock transitions next month. * Turkey switches at 01:00 standard time, not at 01:00 UTC. (Thanks to Amar Devegowda and Steffen Thorsen for this.) * Pulaski County, Indiana, is switching from CST/CDT to EST/EDT next month (which means a 2-hour change on March 11). This requires a new Zone, America/Indiana/Winamac. (Thanks to Gwillim Law for the heads-up.) * A slight correction to Easter Island Mean Time (1890-1932). * Update comments for Canada. (Thanks to Chris Walton.) * Add an example to the zic man page, to help explain things a bit better. * Add URLs to http://www.calconnect.org/dstlinks.html and to http://www.chronos-st.org/. =================================================================== RCS file: RCS/zic.8,v retrieving revision 2006.13 retrieving revision 2006.13.0.1 diff -u -r2006.13 -r2006.13.0.1 --- zic.8 2006/10/02 19:32:10 2006.13 +++ zic.8 2007/01/12 23:32:22 2006.13.0.1 @@ -411,6 +411,63 @@ .q Rolling if the leap second time given by the other fields should be interpreted as local wall clock time. +.SH "EXTENDED EXAMPLE" +Here is an extended example of +.I zic +input, intended to illustrate many of its features. +.br +.ne 22 +.nf +.in +2m +.ta \w'# Rule\0\0'u +\w'NAME\0\0'u +\w'FROM\0\0'u +\w'1973\0\0'u +\w'TYPE\0\0'u +\w'Apr\0\0'u +\w'lastSun\0\0'u +\w'2:00\0\0'u +\w'SAVE\0\0'u +.sp +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +Rule Swiss 1940 only - Nov 2 0:00 1:00 S +Rule Swiss 1940 only - Dec 31 0:00 0 - +Rule Swiss 1941 1942 - May Sun>=1 2:00 1:00 S +Rule Swiss 1941 1942 - Oct Sun>=1 0:00 0 +.sp .5 +Rule EU 1977 1980 - Apr Sun>=1 1:00u 1:00 S +Rule EU 1977 only - Sep lastSun 1:00u 0 - +Rule EU 1978 only - Oct 1 1:00u 0 - +Rule EU 1979 1995 - Sep lastSun 1:00u 0 - +Rule EU 1981 max - Mar lastSun 1:00u 1:00 S +Rule EU 1996 max - Oct lastSun 1:00u 0 - +.sp +.ta \w'# Zone\0\0'u +\w'Europe/Zurich\0\0'u +\w'0:34:08\0\0'u +\w'RULES/SAVE\0\0'u +\w'FORMAT\0\0'u +# Zone NAME GMTOFF RULES FORMAT UNTIL +Zone Europe/Zurich 0:34:08 - LMT 1848 Sep 12 + 0:29:44 - BMT 1894 Jun + 1:00 Swiss CE%sT 1981 + 1:00 EU CE%sT +.sp +Link Europe/Zurich Switzerland +.sp +.in +.fi +In this example, the zone is named Europe/Zurich but it has an alias +as Switzerland. Zurich was 34 minutes and 8 seconds west of GMT until +1848-09-12 at 00:00, when the offset changed to 29 minutes and 44 +seconds. After 1894-06-01 at 00:00 Swiss daylight saving rules (defined +with lines beginning with "Rule Swiss") apply, and the GMT offset +became one hour. From 1981 to the present, EU daylight saving rules have +applied, and the UTC offset has remained at one hour. +.PP +In 1940, daylight saving time applied from November 2 at 00:00 to +December 31 at 00:00. In 1941 and 1942, daylight saving time applied +from the first Sunday in May at 02:00 to the first Sunday in October +at 00:00. +The pre-1981 EU daylight-saving rules have no effect +here, but are included for completeness. Since 1981, daylight +saving has begun on the last Sunday in March at 01:00 UTC. +Until 1995 it ended the last Sunday in September at 01:00 UTC, +but this changed to the last Sunday in October starting in 1996. +.PP +For purposes of +display, "LMT" and "BMT" were initially used, respectively. Since +Swiss rules and later EU rules were applied, the display name for the +timezone has been CET for standard time and CEST for daylight saving +time. .SH NOTES For areas with more than two types of local time, you may need to use local standard time in the =================================================================== RCS file: RCS/europe,v retrieving revision 2007.1 retrieving revision 2007.1.0.1 diff -u -r2007.1 -r2007.1.0.1 --- europe 2007/01/08 17:17:29 2007.1 +++ europe 2007/01/14 06:13:53 2007.1.0.1 @@ -2278,6 +2278,24 @@ 1:00 EU CE%sT # Turkey + +# From Amar Devegowda (2007-01-03): +# The time zone rules for Istanbul, Turkey have not been changed for years now. +# ... The latest rules are available at - +# http://www.timeanddate.com/worldclock/timezone.html?n=107 +# From Steffen Thorsen (2007-01-03): +# I have been able to find press records back to 1996 which all say that +# DST started 01:00 local time and end at 02:00 local time. I am not sure +# what happened before that. One example for each year from 1996 to 2001: +# http://newspot.byegm.gov.tr/arsiv/1996/21/N4.htm +# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING97/03/97X03X25.TXT +# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING98/03/98X03X02.HTM +# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING99/10/99X10X26.HTM#%2016 +# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2000/03/00X03X06.HTM#%2021 +# http://www.byegm.gov.tr/YAYINLARIMIZ/CHR/ING2001/03/23x03x01.HTM#%2027 +# From Paul Eggert (2007-01-03): +# Prefer the above source to Shanks & Pottenger for time stamps after 1990. + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule Turkey 1916 only - May 1 0:00 1:00 S Rule Turkey 1916 only - Oct 1 0:00 0 - @@ -2332,14 +2350,17 @@ Rule Turkey 1983 only - Oct 2 0:00 0 - Rule Turkey 1985 only - Apr 20 0:00 1:00 S Rule Turkey 1985 only - Sep 28 0:00 0 - +Rule Turkey 1986 1990 - Mar lastSun 2:00s 1:00 S +Rule Turkey 1986 1990 - Sep lastSun 2:00s 0 - +Rule Turkey 1991 max - Mar lastSun 1:00s 1:00 S +Rule Turkey 1991 1995 - Sep lastSun 1:00s 0 - +Rule Turkey 1996 max - Oct lastSun 1:00s 0 - # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Europe/Istanbul 1:55:52 - LMT 1880 1:56:56 - IMT 1910 Oct # Istanbul Mean Time? 2:00 Turkey EE%sT 1978 Oct 15 3:00 Turkey TR%sT 1985 Apr 20 # Turkey Time - 2:00 Turkey EE%sT 1986 - 2:00 C-Eur EE%sT 1991 - 2:00 EU EE%sT + 2:00 Turkey EE%sT Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # Ukraine =================================================================== RCS file: RCS/northamerica,v retrieving revision 2007.1 retrieving revision 2007.1.0.1 diff -u -r2007.1 -r2007.1.0.1 --- northamerica 2007/01/08 17:17:29 2007.1 +++ northamerica 2007/02/12 06:52:32 2007.1.0.1 @@ -583,6 +583,11 @@ # clocks twice that night, but this obviously is in error. The intent # is that 01:59:59 EST be followed by 02:00:00 CDT. +# From Gwillim Law (2007-02-10): +# The Associated Press has been reporting that Pulaski County, Indiana is +# going to switch from Central to Eastern Time on March 11, 2007.... +# http://www.indystar.com/apps/pbcs.dll/article?AID=/20070207/LOCAL190108/702… + # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Indianapolis 1941 only - Jun 22 2:00 1:00 D Rule Indianapolis 1941 1954 - Sep lastSun 2:00 0 S @@ -618,7 +623,7 @@ -5:00 - EST 2006 -5:00 US E%sT # -# Daviess, Dubois, Knox, Martin, Perry, and Pulaski Counties, Indiana, +# Daviess, Dubois, Knox, Martin, and Perry Counties, Indiana, # switched from eastern to central time in April 2006. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER Rule Vincennes 1946 only - Apr lastSun 2:00 1:00 D @@ -676,6 +681,23 @@ -5:00 - EST 2006 Apr 2 2:00 -6:00 US C%sT # +# Pulaski County, Indiana, switched from eastern to central time in +# April 2006 and then switched back in March 2007. +# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER +Rule Pulaski 1946 1960 - Apr lastSun 2:00 1:00 D +Rule Pulaski 1946 1954 - Sep lastSun 2:00 0 S +Rule Pulaski 1955 1956 - Oct lastSun 2:00 0 S +Rule Pulaski 1957 1960 - Sep lastSun 2:00 0 S +# Zone NAME GMTOFF RULES FORMAT [UNTIL] +Zone America/Indiana/Winamac -5:46:25 - LMT 1883 Nov 18 12:13:35 + -6:00 US C%sT 1946 + -6:00 Pulaski C%sT 1961 Apr 30 2:00 + -5:00 - EST 1969 + -5:00 US E%sT 1971 + -5:00 - EST 2006 Apr 2 2:00 + -6:00 US C%sT 2007 Mar 11 2:00 + -5:00 US E%sT +# # Switzerland County, Indiana, did not observe DST from 1973 through 2005. # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone America/Indiana/Vevay -5:40:16 - LMT 1883 Nov 18 12:19:44 @@ -894,18 +916,16 @@ # Unless otherwise specified, the data for Canada are all from Shanks # & Pottenger. -# From Chris Walton (2006-04-01): +# From Chris Walton (2006-04-01, 2006-04-25, 2006-06-26, 2007-01-31): # The British Columbia government announced yesterday that it will # adjust daylight savings next year to align with changes in the # U.S. and the rest of Canada.... # http://www2.news.gov.bc.ca/news_releases_2005-2009/2006AG0014-000330.htm - -# From Chris Walton (2006-04-25): +# ... +# Nova Scotia # Daylight saving time will be extended by four weeks starting in 2007.... -# Here is a news release which was issued today by the Nova Scotia government: -# http://www.gov.ns.ca/news/details.asp?id=20060425004 - -# From Chris Walton (2006-06-26): +# http://www.gov.ns.ca/just/regulations/rg2/2006/ma1206.pdf +# # [For New Brunswick] the new legislation dictates that the time change is to # be done at 02:00 instead of 00:01. # http://www.gnb.ca/0062/acts/BBA-2006/Chap-19.pdf @@ -915,16 +935,18 @@ # http://web2.gov.mb.ca/laws/statutes/ccsm/o030e.php # ... # [Alberta, Ontario, Quebec] will follow US rules. -# http://www.qp.gov.ab.ca/documents/Acts/2006CH03_UNPR.cfm?frm_isbn=0779744934 +# http://www.qp.gov.ab.ca/documents/spring/CH03_06.CFM # http://www.e-laws.gov.on.ca/DBLaws/Source/Regs/English/2006/R06111_e.htm -# http://www.assnat.qc.ca/eng/37legislature2/Projets-loi/Publics/06-a002.htm +# http://www2.publicationsduquebec.gouv.qc.ca/dynamicSearch/telecharge.php?ty… # ... -# P.E.I. will follow US rules. The new legislation is not law yet. -# It passed first reading on April 20.... -# http://www.assembly.pe.ca/bills/pdf_first/62/3/bill-101.pdf +# P.E.I. will follow US rules.... +# http://www.assembly.pe.ca/bills/pdf_chapter/62/3/chapter-41.pdf # ... -# Province of Newfoundland and Labrador.... The change is being considered. -# http://www.releases.gov.nl.ca/releases/2006/mpa/0331n01.htm +# Province of Newfoundland and Labrador.... +# http://www.hoa.gov.nl.ca/hoa/bills/Bill0634.htm +# ... +# Yukon +# http://www.gov.yk.ca/legislation/regs/oic2006_127.pdf # ... # N.W.T. will follow US rules. Whoever maintains the government web site # does not seem to believe in bookmarks. To see the news release, click the @@ -932,7 +954,14 @@ # "Daylight Savings Time Change" link; it will fire off a popup using # JavaScript. # http://www.exec.gov.nt.ca/currentnews/currentPR.asp?mode=archive - +# ... +# No formal announcement has been made from the Nunavut Government. +# The premier of Nunavut claimed in August of 2005 that he did not +# want to touch the issue; nothing more has been heard since. It is +# likely Nunavut will eventually follow the rest of the country but +# there will certainly be confusion on March 11/2007 if no formal +# announcement is made. Currently the TZ database and Microsoft make +# assumptions that Nunavut will follow the rest of the country. # From Paul Eggert (2006-04-25): @@ -1100,11 +1129,11 @@ # New Brunswick -# From Paul Eggert (2006-01-20): -# New Brunswick's Time Definition Act -# <http://www.gnb.ca/0062/PDF-acts/t-06.pdf> says they change at 00:01, and +# From Paul Eggert (2007-01-31): +# The Time Definition Act <http://www.gnb.ca/0062/PDF-acts/t-06.pdf> +# says they changed at 00:01 through 2006, and # <http://www.canlii.org/nb/laws/sta/t-6/20030127/whole.html> makes it -# clear that this has been the case since at least 1993. +# clear that this was the case since at least 1993. # For now, assume it started in 1993. # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S @@ -1676,10 +1705,6 @@ # For lack of better information, assume that Southampton Island observed # daylight saving only during wartime. -# From Chris Walton (2006-07-19): -# The government of Yukon Territory ... recently announced it will extend -# daylight saving in 2007.... http://www.gov.yk.ca/news/2006/06-164.html - # Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S Rule NT_YK 1918 only - Apr 14 2:00 1:00 D Rule NT_YK 1918 only - Oct 27 2:00 0 S =================================================================== RCS file: RCS/southamerica,v retrieving revision 2007.1 retrieving revision 2007.1.0.1 diff -u -r2007.1 -r2007.1.0.1 --- southamerica 2007/01/08 17:26:20 2007.1 +++ southamerica 2007/01/14 06:16:11 2007.1.0.1 @@ -765,7 +765,7 @@ -5:00 Chile CL%sT 1947 May 22 # Chile Time -4:00 Chile CL%sT Zone Pacific/Easter -7:17:44 - LMT 1890 - -7:17:44 - EMT 1932 Sep # Easter Mean Time + -7:17:28 - EMT 1932 Sep # Easter Mean Time -7:00 Chile EAS%sT 1982 Mar 13 21:00 # Easter I Time -6:00 Chile EAS%sT # =================================================================== RCS file: RCS/zone.tab,v retrieving revision 2007.1 retrieving revision 2007.1.0.1 diff -u -r2007.1 -r2007.1.0.1 --- zone.tab 2007/01/08 17:28:11 2007.1 +++ zone.tab 2007/02/12 06:51:56 2007.1.0.1 @@ -379,11 +379,12 @@ US +381515-0854534 America/Kentucky/Louisville Eastern Time - Kentucky - Louisville area US +364947-0845057 America/Kentucky/Monticello Eastern Time - Kentucky - Wayne County US +394606-0860929 America/Indiana/Indianapolis Eastern Time - Indiana - most locations -US +382232-0862041 America/Indiana/Marengo Eastern Time - Indiana - Crawford County US +411745-0863730 America/Indiana/Knox Eastern Time - Indiana - Starke County +US +410305-0863611 America/Indiana/Winamac Eastern Time - Indiana - Pulaski County +US +382232-0862041 America/Indiana/Marengo Eastern Time - Indiana - Crawford County US +384452-0850402 America/Indiana/Vevay Eastern Time - Indiana - Switzerland County US +415100-0873900 America/Chicago Central Time -US +384038-0873143 America/Indiana/Vincennes Central Time - Indiana - Daviess, Dubois, Knox, Martin, Perry & Pulaski Counties +US +384038-0873143 America/Indiana/Vincennes Central Time - Indiana - Daviess, Dubois, Knox, Martin & Perry Counties US +382931-0871643 America/Indiana/Petersburg Central Time - Indiana - Pike County US +450628-0873651 America/Menominee Central Time - Michigan - Dickinson, Gogebic, Iron & Menominee Counties US +470659-1011757 America/North_Dakota/Center Central Time - North Dakota - Oliver County =================================================================== RCS file: RCS/tz-link.htm,v retrieving revision 2007.1 retrieving revision 2007.1.0.1 diff -u -r2007.1 -r2007.1.0.1 --- tz-link.htm 2007/01/08 17:17:29 2007.1 +++ tz-link.htm 2007/02/22 17:31:50 2007.1.0.1 @@ -8,7 +8,7 @@ <meta http-equiv="Content-type" content='text/html; charset="US-ASCII"'> <meta name="DC.Creator" content="Eggert, Paul"> <meta name="DC.Contributor" content="Olson, Arthur David"> -<meta name="DC.Date" content="2007-01-02"> +<meta name="DC.Date" content="2007-02-22"> <meta name="DC.Description" content="Sources of information about time zones and daylight saving time"> <meta name="DC.Identifier" content="http://www.twinsun.com/tz/tz-link.htm"> @@ -152,6 +152,9 @@ href="http://www.calconnect.org/publications/icalendartimezoneproblemsandrecommen…">iCalendar TIMEZONE Problems and Recommendations</a> offers guidelines and recommendations for the use of VTIMEZONE and <code>tz</code>.</li> +<li><a href="http://www.calconnect.org/dstlinks.html">Extended Daylight +Saving Time Links, Advisories and Changes</a> lists vendor material on recent +daylight saving time changes.</li> <li><a href="http://www.calconnect.org/publications/timezoneregistryandservicerecommenda…">Timezone Registry and Service Recommendations</a> discusses a @@ -216,6 +219,13 @@ <a href="http://www.ruby-lang.org/">Ruby</a>. It is freely available under the <abbr title="Massachusetts Institute of Technology">MIT</abbr> license.</li> +<li>The <a href="http://www.chronos-st.org/">Chronos Date/Time +Library</a> is a <a href="http://smalltalk.org/">Smalltalk</a> class +library that compiles <code>tz</code> source into a <a +href="http://date-time-zone.com/">time zone repository</a> whose format +is either proprietary or an <a href="http://www.w3.org/XML/"><abbr +title="Extensible Markup Language">XML</abbr></a>-encoded +representation.</li> <li>Starting with version 8.5, <a href="http://www.tcl.tk/">Tcl</a> contains a developer-oriented parser that compiles <samp>tz</samp> source into text files, along with a runtime that can read those @@ -543,11 +553,9 @@ 8601:2004 -- Data elements and interchange formats -- Information interchange -- Representation of dates and times</a>.</li> <li> -<a href="http://www.w3.org/TR/xmlschema-2/#dateTime"><abbr -title="Extensible Markup Language">XML</abbr> +<a href="http://www.w3.org/TR/xmlschema-2/#dateTime"><abbr>XML</abbr> Schema: Datatypes - dateTime</a> specifies a format inspired by -<abbr>ISO</abbr> 8601 that is in common use in <a -href="http://www.w3.org/XML/"><abbr>XML</abbr></a> data.</li> +<abbr>ISO</abbr> 8601 that is in common use in XML data.</li> <li> <a href="ftp://ftp.rfc-editor.org/in-notes/rfc2822.txt">Internet <abbr title="Request For Comments">RFC</abbr> 2822</a> §3.3 =================================================================== RCS file: RCS/zic.c,v retrieving revision 2007.2 retrieving revision 2007.2.0.1 diff -u -r2007.2 -r2007.2.0.1 --- zic.c 2007/02/12 14:33:57 2007.2 +++ zic.c 2007/02/20 23:31:30 2007.2.0.1 @@ -2644,7 +2644,7 @@ static int mkdirs(argname) -char * const argname; +char * argname; { register char * name; register char * cp;

2 1

Haiti and Saint Pierre and Miquelon
by Stephen Colebourne Feb. 22, 2007

Feb. 22, 2007

Hi Some IATA info: Haiti won't be having DST in 2007: Country Time Standard – – – DST Start – – – – – – DST End – – – DST Name Zone Variation Time Date Time Date Variation Haiti HT -0500 Saint Pierre and Miquelon will match the US and Canada: Country Time Standard – – – DST Start – – – – – – DST End – – – DST Name Zone Variation Time Date Time Date Variation Saint Pierre PM and Miquelon -0300 0500 11MAR07 0400 04NOV07 -0200 0500 09MAR08 0400 02NOV08 -0200 0500 08MAR09 0400 01NOV09 -0200 Stephen

1 0

AST4ADT
by Rene.Guitar＠statcan.ca Feb. 22, 2007

Feb. 22, 2007

Hello, I just download files tzdata*.tar.gaz from you FTP server and to my surprise there is no AST4ADT file after compiling? I have a server in Montreal(Canada) so I can use the EST5EDT file, but also need to update one in Halifax (Canada), and I cannot see any AST4ADT file. Am I missing something here or is there an omission in the tzdata file? Thanks René Guitar Statistics Canada

1 0

Doubt Regarding DST Patches
by Thiyagu Venki Feb. 22, 2007

Feb. 22, 2007

Hello , The following steps are done by me in RHEL 4 machine 1. I have downloaded Only tzdata2007a.tar.gz from ftp://elsie.nci.nih.gov/pub/ 2. And I compiled using zic as Example: zic -d zoneinfo/ northamerica -L leapseconds -y yearistype.sh where zoneinfo is my temporary directory 3. And replaced the files to /usr/share/zoneinfo directory 4. Deleted Existing /etc/localtime 4. Copied the new zoneinfo Timezone as cp /usr/share/zoneinfo/America/Los_Angeles /etc/localtime 5. After the above execution I tested using zdump -v /etc/localtime | grep 2007 I found the result as Mar & Nov Correctly please tell me that 1. The above timezonedata .. i.e. tzdata2007a.tar.gz is enough for to update below listed OS List Of Linux ~~~~ ~~ ~~~~~ Redhat ES 4 Redhat ES 3 Enteprise Version ES 3. Enterprise Version WS 3 Enterprise Version 3 Linux 7.1 Redhat ES 4 update 3 Redhat ES 4 update 3 Redhat 7.1 2. Is Im required to download tzcode2007a.tar.gz and update with zic.c that is available in the tzcode2007a.tar.gz With Regards, Thiyagu

1 0

FW: DST rules for Istanbul, Turkey
by Olson, Arthur David (NIH/NCI) [E] Feb. 21, 2007

Feb. 21, 2007

I'm forwarding this message from Nirav Vora, who is not on the time zone mailing list. Those of you who are on the tme zone mailing list should direct replies appropriately. --ado ________________________________ From: Nirav Jk Vora [mailto:nirav.vora@in.ibm.com] Sent: Tuesday, February 13, 2007 9:52 PM To: tz(a)lecserver.nci.nih.gov Subject: Fw: DST rules for Istanbul, Turkey Importance: High Hi All, Just following up to see if someone could provide some inputs to my previous mail which is below. Just wanted to check as this is urgent for the customer. With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------ ----- Forwarded by Nirav Jk Vora/India/IBM on 02/14/2007 08:19 AM ----- Nirav Jk Vora/India/IBM 02/10/2007 08:41 AM To tz(a)elsie.nci.nih.gov cc Subject Re: DST rules for Istanbul, TurkeyLink <Notes://d23m0066/6525701E0082C7B6/691A46CAF425A77B6525727500111FC3/9DB5E329E2A52B24652572750034A74E> Hi All, Thank you all for your replies. I have gone back conveying the same to the customer. Here is what they have had to say: ------------------------------------------------------------------------------------- According to following link; http://wwp.greenwichmeantime.com/time-zone/europe/european-union/turkey/ turkey time zone settings are as follow which is valid now. Standard Time = GMT+2 Summer Time = GMT+3 According to following link; http://www.timeanddate.com/worldclock/timezone.html?n=107&syear=2000 29 Ekim 2006 Pazar, 01:59:59 1 hour +3 hours EEST 29 Ekim 2006 Pazar, 01:00:00 No +2 hours EET DST ends 25 Mart 2007 Pazar, 00:59:59 No +2 hours EET 25 Mart 2007 Pazar, 02:00:00 1 hour +3 hours EEST DST starts which is consistent with the previous information. To support the below information,I have taken the official newspaper of the government which had declared to regulate the time settings.I have talked with the staff of the government. They said that this declaration is the last daylight saving declaration announced by the government with official newspaper and today rules are valid for this declaration. I am sending the image of the fax that is sent by the government. The newspaper is normally in Turkish. I want to explain it briefly: "26 Mart 2000 Pazar günü saat 01:00'den itibaren bir saat ileri al?nmas?" means "clocks will be set 1 hour forward (will be GMT+3 ) on 26 March 2000 Sunday at 01:00" 01:00 is the local time (23:00 GMT Saturday) and "29 Ekim 200 Pazar günü saat 02:00'den itibaren bir saat geri al?nmas?" means "clocks will be set 1 hour back (will be GMT+2 ) on 29 October 2000 Sunday at 02:00" 02:00 is the local time (23:00 GMT Satruday) I think these documents are enough to show the daylight saving policy of Turkey is: Standard Time = GMT+2 Summer Time = GMT+3 ---------------------------------------------------------------------------------------------------------- So to summarize, the customer has provided a citation from the turkish government which tells about the latest DST rules. I have attached the jpg in this mail. Please review the same and provide your inputs as to whether this information would suffice to change the database timezone rules for Turkey. With Warm Regards ------------------------------------------------------------------ Nirav J Vora Team member, JVM L3 Support(AIX) IBM India Software Lab, Bangalore ( Office: +91-8025094142 È Mobile: +91-9945383481 + e-Mail: nirav.vora(a)in.ibm.com ------------------------------------------------------------------ JVM Diagnostics Reference @ IBM Internal: http://w3.hursley.ibm.com/java/jim/j2se/ibmproduceddocumentation/javadiagno… External: http://www.ibm.com/developerworks/java/jdk/diagnosis/ ------------------------------------------------------------------ Peter Ilieve <peter(a)aldie.co.uk> 02/01/2007 02:58 PM To Nirav Jk Vora/India/IBM@IBMIN cc tz(a)elsie.nci.nih.gov Subject Re: DST rules for Istanbul, Turkey > Thanks, but that link says Turkish DST starts at 01:00 GMT (i.e., at > 03:00 local time) and ends at 01:00 GMT (i.e., at 04:00 local time). > This agrees with the current tz database. But Amar Devegowda reported > that Turkish DST actually starts at 01:00 local time and ends at 02:00 > local time. Steffen Thorsen of timeanddate.com agreed, and cited > Turkish newspaper reports from 1996 through 2001. > > I'm inclined to go with Devegowda and Thorsen, but what would be > helpful is an official source (e.g., a citation from Turkish law) that > says exactly when this practice started. So far, all we know is that > the current Turkish practice started before 1996, which is a bit > vague. I don't have any authoritative source but I can add a little context to this. Turkey is attempting to join the European Union (it's listed as a candidate country on the <http://wwp.greenwichmeantime.com/time-zone/europe/european-union/> page). This is proving a long and painful process. It may be that Turkey has officially switched to the EU 01:00 UTC clock change time recently as part of this EU application process. It may be that the website is just confused, showing all pages under the european-union directory as using EU rules even if they don't. I would also go with Devegowda and Thorsen, mainly on the basis that I think it's very unlikely that a country that far east would use 01:00 UTC unless forced to by something like EU rules. Newspaper reports of 01:00 local time are much more credible. Peter Ilieve peter(a)aldie.co.uk

2 1