January 2001 - tz - lists.iana.org

New daylight saving period in Mexico?
by Jesper Nørgaard Welen Jan. 20, 2001

Jan. 20, 2001

According to the following information, we are about to get a decision here in Mexico whether the application of daylight saving will be 2 or 3 months shorter this year or not. The decision is not yet taken, but according to these articles should be taken within 2-3 days: http://www.reforma.com.mx/ciudad_de_mexico/articulo/063682/ http://www.reforma.com.mx/nacional/articulo/063665/ http://www.reforma.com.mx/nacional/articulo/063770/ Regards, Jesper Nørgaard Welen Email: jnorgard(a)Prodigy.Net.mx Programador/Analista CIMMYT - Centro Internacional de Mejoramiento de Maíz y Trigo Dirección: CIMMYT Int. c/o Jesper Nørgaard Km. 45, Carretera México-Veracruz El Batán Texcoco, Edo. de México CP 56130 MEXICO Tel.: +52 (5) 58-04-20-04 ext. 1374 Fax: +52 (5) 58-04-75-58 Tel. Casa: 53-10-05-95 ó 53-10-97-78 CIMMYT home page: http://cimmyt.cgiar.org Check out my World Time Explorer: http://timezone50.homepage.com

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etcetera patch
by Semen A. Ustimenko Jan. 16, 2001

Jan. 16, 2001

Hi! I've discovered that definition for GMT+N anf GMT-N are just wrong. I.e. setting zone to GMT+6 you really get -6 hours offset from GMT. And this is quite correct as is defined in etcetera file! So, suppose follwoing patch worth commiting. Index: src/share/zoneinfo/etcetera =================================================================== RCS file: /usr/home/ncvs/src/share/zoneinfo/etcetera,v retrieving revision 1.1.2.4 diff -c -r1.1.2.4 etcetera *** src/share/zoneinfo/etcetera 1999/01/21 21:35:07 1.1.2.4 --- src/share/zoneinfo/etcetera 2000/12/04 15:14:56 *************** *** 37,65 **** # zic -l GMT-12 # so we moved the names into the Etc subdirectory. ! Zone Etc/GMT-14 14 - GMT-14 # 14 hours ahead of GMT ! Zone Etc/GMT-13 13 - GMT-13 ! Zone Etc/GMT-12 12 - GMT-12 ! Zone Etc/GMT-11 11 - GMT-11 ! Zone Etc/GMT-10 10 - GMT-10 ! Zone Etc/GMT-9 9 - GMT-9 ! Zone Etc/GMT-8 8 - GMT-8 ! Zone Etc/GMT-7 7 - GMT-7 ! Zone Etc/GMT-6 6 - GMT-6 ! Zone Etc/GMT-5 5 - GMT-5 ! Zone Etc/GMT-4 4 - GMT-4 ! Zone Etc/GMT-3 3 - GMT-3 ! Zone Etc/GMT-2 2 - GMT-2 ! Zone Etc/GMT-1 1 - GMT-1 ! Zone Etc/GMT+1 -1 - GMT+1 ! Zone Etc/GMT+2 -2 - GMT+2 ! Zone Etc/GMT+3 -3 - GMT+3 ! Zone Etc/GMT+4 -4 - GMT+4 ! Zone Etc/GMT+5 -5 - GMT+5 ! Zone Etc/GMT+6 -6 - GMT+6 ! Zone Etc/GMT+7 -7 - GMT+7 ! Zone Etc/GMT+8 -8 - GMT+8 ! Zone Etc/GMT+9 -9 - GMT+9 ! Zone Etc/GMT+10 -10 - GMT+10 ! Zone Etc/GMT+11 -11 - GMT+11 ! Zone Etc/GMT+12 -12 - GMT+12 --- 37,65 ---- # zic -l GMT-12 # so we moved the names into the Etc subdirectory. ! Zone Etc/GMT-14 -14 - GMT-14 # 14 hours ahead of GMT ! Zone Etc/GMT-13 -13 - GMT-13 ! Zone Etc/GMT-12 -12 - GMT-12 ! Zone Etc/GMT-11 -11 - GMT-11 ! Zone Etc/GMT-10 -10 - GMT-10 ! Zone Etc/GMT-9 -9 - GMT-9 ! Zone Etc/GMT-8 -8 - GMT-8 ! Zone Etc/GMT-7 -7 - GMT-7 ! Zone Etc/GMT-6 -6 - GMT-6 ! Zone Etc/GMT-5 -5 - GMT-5 ! Zone Etc/GMT-4 -4 - GMT-4 ! Zone Etc/GMT-3 -3 - GMT-3 ! Zone Etc/GMT-2 -2 - GMT-2 ! Zone Etc/GMT-1 -1 - GMT-1 ! Zone Etc/GMT+1 1 - GMT+1 ! Zone Etc/GMT+2 2 - GMT+2 ! Zone Etc/GMT+3 3 - GMT+3 ! Zone Etc/GMT+4 4 - GMT+4 ! Zone Etc/GMT+5 5 - GMT+5 ! Zone Etc/GMT+6 6 - GMT+6 ! Zone Etc/GMT+7 7 - GMT+7 ! Zone Etc/GMT+8 8 - GMT+8 ! Zone Etc/GMT+9 9 - GMT+9 ! Zone Etc/GMT+10 10 - GMT+10 ! Zone Etc/GMT+11 11 - GMT+11 ! Zone Etc/GMT+12 12 - GMT+12

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US changes
by Rives McDow Jan. 16, 2001

Jan. 16, 2001

Dear Paul, Here is an addition for the US. Congress just added Guam and the Northern Marianas to the Uniform Time Act and is calling the time zone, "Chomorro standard time" (This is spelled differently in various sources, and I'm not sure of the final correct spelling.) Rives

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EST
by Alex LIVINGSTON Jan. 15, 2001

Jan. 15, 2001

At 09:06 -0800 2001-01-10, Paul Eggert wrote: > > 1. Is there an "official list" of all the names or labels used to >> designated time zones > >No, unfortunately. And in practice, the names are ambiguous. For >example, "IST" means UTC+2 in Israel, but UTC+5:30 in India. >Simiarly, "EST" has different meanings in the US and in Australia. >Even if you limit yourself to Australia, "EST" can mean UTC+10 or >UTC+11, depending on the time of year. ... and location! Right now, "EST" can mean both UTC+10 and UTC+11, as the state of Queensland does not observe daylight-saving time, whereas the other regions in the eastern time zone do (Victoria, Tasmania, and most of New South Wales). And it's not just because "S" stands for "standard" in the former case and "Summer" in the latter: it stands for "standard" in both cases! Sometimes I'm ashamed to be Australian. _______________ Alex LIVINGSTON IT, Australian Graduate School of Management (AGSM), UNSW SYDNEY NSW 2052 Fax: +61 2 9931-9349 / Phone: +61 2 9931-9264 / Time: UTC + 10 or 11 hours At end of today, Thursday, January 11, time since epoch (1-1-1 at 00:00:00) = 730496 days = 2000.03011698 average Gregorian years time since 2nd millennium, 20th century, 200th decade, 2000th year = 11 days = .03011698 average Gregorian years

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The English Teacher...
by info＠globalcomm.com Jan. 13, 2001

Jan. 13, 2001

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PST
by Alex LIVINGSTON Jan. 11, 2001

Jan. 11, 2001

At 11:07 -0600 2001-01-11, Syed Sajjath wrote: >In our application we always use the abbr., in conjunction with the country, >avoiding ambiguities. More examples are CST, EST and PST used both in >Australia and US. Where/when in Australia is PST used? It doesn't show up anywhere in tzdata2000g. (I haven't downloaded tzdata2000h yet.) _______________ Alex LIVINGSTON IT, Australian Graduate School of Management (AGSM), UNSW SYDNEY NSW 2052 Fax: +61 2 9931-9349 / Phone: +61 2 9931-9264 / Time: UTC + 10 or 11 hours At end of today, Friday, January 12, time since epoch (1-1-1 at 00:00:00) = 730497 days = 2000.03285488 average Gregorian years time since 2nd millennium, 20th century, 200th decade, 2000th year = 12 days = .03285488 average Gregorian years

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Bulletin C number 21
by iers＠hpopa.obspm.fr Jan. 10, 2001

Jan. 10, 2001

INTERNATIONAL EARTH ROTATION SERVICE (IERS) SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE SERVICE DE LA ROTATION TERRESTRE OBSERVATOIRE DE PARIS 61, Av. de l'Observatoire 75014 PARIS (France) Tel. : 33 (0) 1 40 51 22 26 FAX : 33 (0) 1 40 51 22 91 Internet : iers(a)obspm.fr Paris, 11 January 2001 Bulletin C 21 To authorities responsible for the measurement and distribution of time INFORMATION ON UTC - TAI NO positive leap second will be introduced at the end of June 2001. The difference between UTC and the International Atomic Time TAI is : from 1999 January 1, 0h UTC, until further notice : UTC-TAI = - 32 s Leap seconds can be introduced in UTC at the end of the months of December or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every six months, either to announce a time step in UTC, or to confirm that there will be no time step at the next possible date. Daniel GAMBIS Director Earth Orientation Center of IERS

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TZ-related changes in Draft 5 of the next POSIX standard
by Paul Eggert Jan. 10, 2001

Jan. 10, 2001

The Austin Common Standards Revision Group is drafting the next revision of POSIX, and Draft 5 (d5) is now available; see <http://www.opengroup.org/austin/>. Here are some tz-related changes in this draft: * The TZ string has been extended to allow time zone abbreviations with +, -, and digits, so long as the abbreviations are quoted by angle brackets. For example, the Bourne shell commands TZ='<UTC+10>-10' date; date -u might output the following text: Tue Jan 9 10:30:19 UTC+10 2001 Tue Jan 9 00:30:19 GMT 2001 * Conforming time zone abbreviations are no longer allowed to contain arbitrary characters. Unquoted abbreviations can contain only alphabetic characters in the current locale; quoted ones can also contain digits, '+', and '-'. * Multibyte characters are explicitly allowed in time zone abbreviations, e.g. TZ='AB@-10' might specify an abbreviation 'AB@-' if '@-' is a valid multibyte character in the current locale. * The following declarations are added to <time.h>: char *asctime_r(const struct tm *restrict, char *restrict); char *ctime_r(const time_t *, char *); struct tm *localtime_r(const time_t *restrict, struct tm *restrict); struct tm *gmtime_r(const time_t *restrict, struct tm *restrict); struct tm *getdate(const char *); char *strptime(const char *restrict, const char *restrict, struct tm *restrict); extern int daylight; extern long timezone; * The following declaration is added to <wchar.h>, as per ISO C99: size_t wcsftime(wchar_t *restrict wcs, size_t maxsize, const wchar_t *restrict format, const struct tm *restrict timptr); Here is the TZ-environment-variable-relevant part of the text that has changed; this covers the first three items mentioned above. I have included change bars in the text quoted below. The unchanged part appears in section 8.1.1 of the current POSIX standard. The expanded format (for all TZs whose value does not have a colon as the first character) is as follows: stdoffset[dst[offset][,start[/time],end[/time]]] Where: std and dst Indicate no less than three, nor more than {TZNAME_MAX}, bytes that are the designation for the standard (std) or the alternative (dst-such as Daylight Savings Time) timezone. Only std is required; if dst is missing, then the alternative time does not apply in this locale. | | Each of these fields may occur in either of two formats quoted or | unquoted: | | - In the quoted form, the first character shall be the less-than | ('<') character and the last character shall be the | greater-than ('>') character. All characters between these | quoting characters shall be alphanumeric characters in the | current locale, the plus-sign ('+') character, or the | minus-sign ('-') character. The std and dst fields in this case | do not include the quoting characters. | | - In the unquoted form, all characters in these fields shall be | alphabetic characters in the current locale. | | The interpretation of these fields is unspecified if either field is | less than three bytes (except for the case when dst is missing), | more than {TZNAME_MAX} bytes, or if they contain characters | other than those specified.

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IERS Message No. 1
by IERS Central Bureau Jan. 2, 2001

Jan. 2, 2001

*************************************************************************** IERS Message No. 1 January 2, 2001 *************************************************************************** Dear IERS contributors and users As of 1 January 2001 the International Earth Rotation Service has got a new structure with the following novelties: - The previous Sections and Sub-Bureaus of the Central Bureau are now autonomous components within the IERS and are called Product Centres. - The Central Bureau moved from Paris to Frankfurt am Main in Germany and has now primarily administrative functions but will operate a data base for the relevant IERS products and data in the future. - New elements of the structure are Combination Research Centres, ITRS Combination Centres and the Analysis Coordinator. - External services like IGS, ILRS and IVS serve as Technique Centres for the IERS. Several new members entered the Directing Board in December 2000, and recently Jan Vondrak was elected new Chairman of the Directing Board to succeed Chris Reigber on January l, 2001. On 1 January 2001 also a new Web site of the IERS went online: www.iers.org All previous IERS Web and ftp servers will remain active, providing information and data to the users. The new Web site www.iers.org, which will be enlarged and improved in the future, shall provide key information on the IERS and its components. It will also link to the IERS components and to other Web sites of interest. This IERS Message is the second in a series of short information on the IERS and its products for contributors and users. This series together with a planned series of IERS Newsletters will replace the IERS Gazettes, issued between 1996 and 2000. More information about the new IERS is given at the new IERS Web site. With kind regards and best wishes for the year 2001, for the IERS Central Bureau Bernd Richter and Wolfgang R. Dick PS: This IERS Message will be sent to all IERS contributors and users for which we have got an e-mail address from the former Central Bureau. In case that you are not interested in receiving future IERS Messages please let us know so your address may be from the mailing list. If you are reading this message at the Web site or elsewhere and wish to be put on the mailing list please send us a short notice. *************************************************************************** IERS Central Bureau Bundesamt fuer Kartographie und Geodaesie Federal Agency of Cartography and Geodesy Richard-Strauss-Allee 11 60598 Frankfurt am Main Germany phone: ++49-69-6333-273 fax: ++49-69-6333-425 e-mail: central_bureau(a)iers.org ***************************************************************************

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