- tz - lists.iana.org

Problems with this mailing list?
by Yves Goergen July 4, 2010

July 4, 2010

Hi, I observe some strange behaviour with this mailing list. When trying to subscribe, nothing at all happened and after a second try, somebody seemed to have done that manually. This is a very irritating start for new people. I had sent a message to the list a few days ago which just didn't appear while a later one was sent around quite quickly. After a few hours I just resent my message and then it worked. I didn't receive any error message since then. It just got lost on the way with no notice. My mail server keeps informing me now that the delivery of my messages to the list is delayed by 24..48.. hours, but I already received the list's echo of the regarding message. I'm wondering what final error message my mail server will come up with when the retry timeout is over. The list's address is changed in all messages I get from it. Instead of tz(a)elsie.nci.nih.gov, my messages appear to be sent to tz(a)lecserver.nci.nih.gov. I even see messages to "tz(a)elsie.nci.nih.gov" <tz(a)lecserver.nci.nih.gov>... What is the real address now?! All very confusing here. I didn't observe such behaviour in any of the other 13 mailing lists I'm subscribed to... -- Yves Goergen "LonelyPixel" <nospam.list(a)unclassified.de> Visit my web laboratory at http://beta.unclassified.de

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Some questions about the database format
by Yves Goergen July 1, 2010

July 1, 2010

Hi, I intend to use the tz database in my C# calendar application. Since I need a decent time zone support, I was pointed to this database from the MSDN forums. I now have a few questions regarding the file format of the text files. A day specification of "Sun>=1" or "Sun>=8" should be clear, I interpret this as the first/second Sunday in a month. But what weekday and week is "Sun>=25" or "Sun>=2"? How is the Zone field "[UNTIL]" to be understood exactly? Is it including or excluding the given time? What does "1990" mean, is it until and inclusive the whole year 1990, ie /1990-12-31T23:59:59 or is it something around 1990-01-01? What does the time specification "2:00s" mean? I've seen it several times but couldn't make any sense of it. Are all rules in the text files sorted ascending by time ("FROM" year)? That would simplify the processing because in order to convert them into .NET framework structures I need pairs of DST start and end rules together for a range of years, and thus need to resolve the overlapping rule definitions.

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When will 2010k be released ?
by Rajput, Sonali June 30, 2010

June 30, 2010

Hi, Any plans for the k release ? Thanks Sonali

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FW: .NET implementation for tz compiler list
by Olson, Arthur David (NIH/NCI) [E] June 21, 2010

June 21, 2010

I'm forwarding this message from Colin Bowern who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. --ado From: Colin Bowern [mailto:colin@bowern.com] Sent: Wednesday, June 16, 2010 2:28 To: tz(a)lecserver.nci.nih.gov Subject: .NET implementation for tz compiler list Just wanted to give everyone a heads up that there is a Joda Time port for .NET in progress: http://code.google.com/p/noda-time/ It's starting to gather some steam. Cheers, Colin

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.NET implementation for tz compiler list
by Colin Bowern June 16, 2010

June 16, 2010

Just wanted to give everyone a heads up that there is a Joda Time port for .NET in progress: http://code.google.com/p/noda-time/ It's starting to gather some steam. Cheers, Colin

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FW: Patches for zic.8 manpage
by Olson, Arthur David (NIH/NCI) [E] June 14, 2010

June 14, 2010

I'm forwarding this message from Uli, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. The zic.8 file that's part of the original distribution at ftp://elsie.nci.nih.gov/pub doesn't contain ".Dl" lines. My best guess is that these are being introduced by a redistributor; someone on the list may have insights. --ado Hello, not sure if this is the right list to submit "code" changes to, but as I'm working on getting the FreeBSD manpage corpus into shape for mandoc/mdocml, there's a patch I'd like you to commit. The patch fixes some missing quotes. Regards, Uli diff --git a/contrib/tzcode/zic/zic.8 b/contrib/tzcode/zic/zic.8 index f7ff815..fe09ef2 100644 --- a/contrib/tzcode/zic/zic.8 +++ b/contrib/tzcode/zic/zic.8 @@ -120,9 +120,9 @@ Non-blank lines are expected to be of one of three types: rule lines, zone lines, and link lines. .Pp A rule line has the form: -.Dl "Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S +.Dl "Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S" For example: -.Dl "Rule US 1967 1973 \- Apr lastSun 2:00 1:00 D +.Dl "Rule US 1967 1973 \- Apr lastSun 2:00 1:00 D" .Pp The fields that make up a rule line are: .Bl -tag -width "LETTER/S" -offset indent @@ -262,7 +262,7 @@ the variable part is null. A zone line has the form: .Dl "Zone NAME GMTOFF RULES/SAVE FORMAT [UNTILYEAR [MONTH [DAY [TIME]]]]" For example: -.Dl "Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00 +.Dl "Zone Australia/Adelaide 9:30 Aus CST 1971 Oct 31 2:00" The fields that make up a zone line are: .Bl -tag -width indent .It NAME @@ -319,9 +319,9 @@ continuation. .El .Pp A link line has the form -.Dl "Link LINK-FROM LINK-TO +.Dl "Link LINK-FROM LINK-TO" For example: -.Dl "Link Europe/Istanbul Asia/Istanbul +.Dl "Link Europe/Istanbul Asia/Istanbul" The .Em LINK-FROM field should appear as the @@ -335,9 +335,9 @@ Except for continuation lines, lines may appear in any order in the input. .Pp Lines in the file that describes leap seconds have the following form: -.Dl "Leap YEAR MONTH DAY HH:MM:SS CORR R/S +.Dl "Leap YEAR MONTH DAY HH:MM:SS CORR R/S" For example: -.Dl "Leap 1974 Dec 31 23:59:60 + S +.Dl "Leap 1974 Dec 31 23:59:60 + S" The .Em YEAR , .Em MONTH ,

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proposed time zone package changes (Bahia de Banderas; version naming)
by Arthur David Olson June 14, 2010

June 14, 2010

Here are proposed changes to the time zone package: northamerica New "Bahia_Banderas" time zone (omitting the "de" to stay within 14 characters) zone.tab New "Bahia_Banderas" time zone tz-link.htm Add sentence on time zone version naming. If no problems are found, these should show up on the ftp site on 2010-05-10. --ado ------- northamerica ------- *** /tmp/geta2310 Sat May 1 10:13:44 2010 --- /tmp/getb2310 Sat May 1 10:13:44 2010 *************** *** 1,5 **** # <pre> ! # @(#)northamerica 8.30 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. --- 1,5 ---- # <pre> ! # @(#)northamerica 8.31 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. *************** *** 2089,2095 **** --- 2089,2132 ---- -8:00 - PST 1970 -7:00 Mexico M%sT 1999 -7:00 - MST + + # From Alexander Krivenyshev (2010-04-21): + # According to news, Bahía de Banderas (Mexican state of Nayarit) + # changed time zone UTC-7 to new time zone UTC-6 on April 4, 2010 (to + # share the same time zone as nearby city Puerto Vallarta, Jalisco). + # + # (Spanish) + # Bahía de Banderas homologa su horario al del centro del + # país, a partir de este domingo + # <a href="http://www.nayarit.gob.mx/notes.asp?id=20748"> + # http://www.nayarit.gob.mx/notes.asp?id=20748 + # </a> + # + # Bahía de Banderas homologa su horario con el del Centro del + # País + # <a href="http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&vi…"> + # http://www.bahiadebanderas.gob.mx/principal/index.php?option=com_content&vi…" + # </a> + # + # (English) + # Puerto Vallarta and Bahía de Banderas: One Time Zone + # <a href="http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-…"> + # http://virtualvallarta.com/puertovallarta/puertovallarta/localnews/2009-12-… + # </a> + # + # or + # <a href="http://www.worldtimezone.com/dst_news/dst_news_mexico08.html"> + # http://www.worldtimezone.com/dst_news/dst_news_mexico08.html + # </a> + # + # "Mexico's Senate approved the amendments to the Mexican Schedule System that + # will allow Bahía de Banderas and Puerto Vallarta to share the same time + # zone ..." # Baja California Sur, Nayarit, Sinaloa + + # From Arthur David Olson (2010-05-01): + # Use "Bahia_Banderas" to keep the name to fourteen characters. + Zone America/Mazatlan -7:05:40 - LMT 1921 Dec 31 23:54:20 -7:00 - MST 1927 Jun 10 23:00 -6:00 - CST 1930 Nov 15 *************** *** 2100,2105 **** --- 2137,2155 ---- -7:00 - MST 1949 Jan 14 -8:00 - PST 1970 -7:00 Mexico M%sT + + Zone America/Bahia_Banderas -7:01:00 - LMT 1921 Dec 31 23:59:00 + -7:00 - MST 1927 Jun 10 23:00 + -6:00 - CST 1930 Nov 15 + -7:00 - MST 1931 May 1 23:00 + -6:00 - CST 1931 Oct + -7:00 - MST 1932 Apr 1 + -6:00 - CST 1942 Apr 24 + -7:00 - MST 1949 Jan 14 + -8:00 - PST 1970 + -7:00 Mexico M%sT 2010 Apr 4 + -6:00 Mexico C%sT + # Baja California (near US border) Zone America/Tijuana -7:48:04 - LMT 1922 Jan 1 0:11:56 -7:00 - MST 1924 ------- tz-link.htm ------- *** /tmp/geta2330 Sat May 1 10:14:05 2010 --- /tmp/getb2330 Sat May 1 10:14:05 2010 *************** *** 18,24 **** <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.26 </address> <p> This file is in the public domain, so clarified as of --- 18,24 ---- <body> <h1>Sources for Time Zone and Daylight Saving Time Data</h1> <address> ! @(#)tz-link.htm 8.27 </address> <p> This file is in the public domain, so clarified as of *************** *** 89,94 **** --- 89,96 ---- where <code><var>C</var></code> is the code's version; similarly, the data are in <code>tzdata<var>D</var>.tar.gz</code>, where <code><var>D</var></code> is the data's version. + Each version is a four-digit year followed by lower-case letters + (a through z, then za through zz, then zza through zzz, and so on). The following <a href="http://en.wikipedia.org/wiki/Unix_shell">shell</a> commands download these files to a <abbr>GNU</abbr>/Linux or similar host; ------- zone.tab ------- *** /tmp/geta2358 Sat May 1 10:14:46 2010 --- /tmp/getb2358 Sat May 1 10:14:46 2010 *************** *** 1,5 **** # <pre> ! # @(#)zone.tab 8.35 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # --- 1,5 ---- # <pre> ! # @(#)zone.tab 8.36 # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # *************** *** 288,293 **** --- 288,294 ---- MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora MX +3232-11701 America/Tijuana US Pacific Time - Baja California near US border MX +3018-11452 America/Santa_Isabel Mexican Pacific Time - Baja California away from US border + MX +2048-10515 America/Bahia_Banderas Mexican Central Time - Bahia de Banderas MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia MY +0133+11020 Asia/Kuching Sabah & Sarawak MZ -2558+03235 Africa/Maputo

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Revisiting Australian time zone abbreviations
by Richard Stanway June 13, 2010

June 13, 2010

Hello, I came across this mailing list while researching a time zone issue on our website which indirectly makes use of the zoneinfo. We localize some timestamps to the visitors time zone, but the site is trafficked by a predominately US audience where the abbreviation "EST" is used quite often. It is difficult for an Australian visitor to realize that the times they are seeing have been localized since they show for example as "8pm EST" due to the abbreviations used for the Australian time zones, leading to confusion as to whether it is US EST or AU EST. The last discussion on AEST vs EST seems to be about 9 years old and I figured it was time to revisit the subject now that there seems to be an official source. The government website of Australia states the time zone names for Australia are Australian Eastern Standard Time (AEST), Australian Central Standard Time (ACST) and Australian Western Standard Time (AWST) with Australian Eastern Daylight Time (AEDT) and Australian Central Daylight Time (ACDT) when observing daylight saving time. Reference: http://australia.gov.au/about-australia/our-country/time Any chance of these official names making it into a zoneinfo update?

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Patches for zic.8 manpage
by Ulrich Spörlein June 9, 2010

June 9, 2010

Hello, not sure if this is the right list to submit "code" changes to, but as I'm working on getting the FreeBSD manpage corpus into shape for mandoc/mdocml, there's a patch I'd like you to commit. The patch fixes some missing quotes. Regards, Uli

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FW: Timezone option
by Olson, Arthur David (NIH/NCI) [E] May 26, 2010

May 26, 2010

I'm forwarding this message from Honey Bajaj, who is not on the time zone mailing list. Those of you who are on the list, please direct replies appropriately. (On some systems, setting TZ to "GMT-48" may do what HB wants.) --ado From: honey bajaj [mailto:honeybajaj1@rediffmail.com] Sent: Tuesday, May 25, 2010 3:36 To: tz(a)lecserver.nci.nih.gov Subject: Timezone option Hi, I have a testing requirement which needs to alter the system date to a couple of days ahead of current date. I am wondering if its possible to have a custom timezone which can provide this date change ability to drift the current time to couple of days ahead by setting the TZ environment variable. Regards,

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