- tz - lists.iana.org

[PATCH] * Makefile (.PHONY): Add check_white_space.
by Paul Eggert Aug. 12, 2014

Aug. 12, 2014

--- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 57649c6..d0109bb 100644 --- a/Makefile +++ b/Makefile @@ -624,7 +624,7 @@ zic.o: private.h tzfile.h version.h .PHONY: ALL INSTALL all .PHONY: check check_character_set check_public check_tables -.PHONY: check_time_t_alternatives check_web clean clean_misc +.PHONY: check_time_t_alternatives check_web check_white_space clean clean_misc .PHONY: install maintainer-clean names posix_only posix_right .PHONY: public right_only right_posix signatures tarballs typecheck .PHONY: zonenames zones -- 1.9.1

1 0

Before 1970 - proposal to change LMT
by Stephen Colebourne Aug. 12, 2014

Aug. 12, 2014

The TZDB has few issues after 1970 as far as I can see, but before that date there are debates about what should be included and what should not. Options include - nothing at all before 1970 (but the format demands something...) - only data that has some reasonable source before 1970 - include data before 1970 even if its source is less than ideal Ultimately, the problem revolves around the data format (which cannot realistically be changed) and LMT. In the past there have been various discussions around LMT with the conclusion that it is a bit of a silly concept, because it refers to a single location, not a region. But we are in the position where the format requires it, and it is widely used (even if that use is accidental rather than deliberate). Broadly, my position is that where data can be verified pre-1970, such as in the UK, or my recent Angola email, it should be retained. Commentary should be added to the data files to justify the data that is present. Where the data cannot be verified, I am willing to take a judgement call, provided that the judgement call is not just "we don't know so lets link it elsewhere". What I find objectionable is to have a named entity (zone or link) where the LMT of the named location is replaced by the LMT of some other location. I understand that others may not care, but it seems flat out wrong to me (and is key to solving the pre-1970 problem). Therefore, I'd like to propose a simple alteration to LMT. I propose that all LMT values in the database are replaced by an new value, representing what could be described as "averaged/smoothed regional far past time". In real terms, this means changing all the LMT values to an appropriate fixed value for that location. Once the fixed value is chosen, there should be no reason not to retain it forever. The intention is that the fixed offset value is the most common standard offset used by the location, favouring an offset close to the LMT if ambiguous. The offset chosen would typically be a multiple of 15 minutes, and not contain seconds at all. To help frame the debate, I produced a list of zones and all their *standard* transitions (excluding DST) for 2013h; https://gist.github.com/jodastephen/03487c61782e612db85d Some examples: Europe/London -00:01:15 LMT Z 1847-12-01 My proposal is to change the LMT value from "-00:01:15" to "Z" America/New_York -04:56:02 -05:00 1883-11-18 My proposal is to change the LMT value from "-04:56:02" to "-05:00" America/Panama -05:18:08 -05:19:36 1890-01-01 -05:00 1908-04-22 My proposal is to change the LMT value from "-05:18:08" to "-05:00". If justification for the "-05:19:36" value cannot be found, then that should be removed. The net effect of this would be to provide a much more regularized value for the far past (pre 1850 or later). In most cases, the new LMT offset would be the same as the first non-LMT offset, resulting in the removal of a messy transition, leaving only a name change (eg LMT to GMT). Advantages - regularized far past (my experience shows that developers find the LMT seconds offset confusing when they see it) - increased stability, once adopted there is no reason for the LMT value to change - minimizes churn in the database due to "more accurate" longitude/latitude - allows the same offset to be used even if the largest city changes in a region - typically aligns the far past with the first "real" zone definition line - allows multiple locations to be linked (as per recent changes) without debate about changing any timestamps in most cases - when multiple locations are linked, only the start of regular time is then significant data (where known it should be retained) Disadvantages: - changes the meaning of LMT (the name could be possibly be changed to FPT - far past time) - loses existing LMT data (it could still be made available in a separate file) - requires a one-off change I hope that this proposal can be considered, as it would seem to address the majority of the issues in a simple and neat way that benefits most downstream consumers with extra regularity and stability. Stephen

2 5

Fwd: WG Action: Formed Time Zone Data Distribution Service (tzdist)
by Eliot Lear Aug. 12, 2014

Aug. 12, 2014

Friends, I'd like to bring this to your attention. Discussions surrounding these two services will be held on the tzdist mailing list. Please join that list if you are interested. Eliot

1 0

[PATCH] New file time.tab, superseding zone.tab
by Paul Eggert Aug. 12, 2014

Aug. 12, 2014

It allows multiple country codes per zone. Switch code and data to use the new format, along with the recently-added Crozet Islands entry. The old zone.tab file is still installed but is deprecated. The new file uses UTF-8; add commentary saying that iso3166.tab is planned to change to UTF-8. * Theory, tzselect.8 (FILES): zone.tab -> time.tab. * africa (Indian/Alfred_Faure): Remove link. * antarctica: Mention Possession Island in comments. * checktab.awk: Add support for checking time.tab. * iso3166.tab: Mention planned switch to UTF-8. Update ISO 3166-1 Newsletter from VI-15 to VI-16. * time.tab: New file. * tzselect.ksh (zonetabtype): New variable. Add undocumented -t option, meant for developer testing. (TZ_ZONE_TABLE): Use zonetabtype. (output_distances, countries, regions, TZ): Support time.tab format. (quoted_continents, distance_table, countries, regions) (TZ, TZ_for_date): Quote shell strings more carefully. * zone.tab: Refer to time.tab for detailed comments about format. (Indian/Alfred_Faure): Remove. * Makefile (TIMETABLES): New macro. (TABDATA, install, check_tables): Use it. (check_character_set, check_tables): Check time.tab too. (check_time_t_alternatives): Use time.tab, not zone.tab. * NEWS: Document the above. --- Makefile | 20 ++-- NEWS | 15 ++- Theory | 4 +- africa | 3 +- antarctica | 2 +- checktab.awk | 58 +++++----- iso3166.tab | 12 +- time.tab | 371 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ tzselect.8 | 4 +- tzselect.ksh | 35 ++++-- zone.tab | 37 ++---- 11 files changed, 477 insertions(+), 84 deletions(-) create mode 100644 time.tab diff --git a/Makefile b/Makefile index 8de640a..68388b3 100644 --- a/Makefile +++ b/Makefile @@ -340,7 +340,8 @@ PRIMARY_YDATA= africa antarctica asia australasia \ YDATA= $(PRIMARY_YDATA) pacificnew etcetera backward NDATA= systemv factory TDATA= $(YDATA) $(NDATA) -TABDATA= iso3166.tab zone.tab leapseconds +TIMETABLES= time.tab zone.tab +TABDATA= iso3166.tab $(TIMETABLES) leapseconds LEAP_DEPS= leapseconds.awk leap-seconds.list DATA= $(YDATA) $(NDATA) $(TABDATA) \ $(LEAP_DEPS) yearistype.sh @@ -364,7 +365,7 @@ install: all $(DATA) $(REDO) $(MANS) $(DESTDIR)$(MANDIR)/man8 $(ZIC) -y $(YEARISTYPE) \ -d $(DESTDIR)$(TZDIR) -l $(LOCALTIME) -p $(POSIXRULES) - cp -f iso3166.tab zone.tab $(DESTDIR)$(TZDIR)/. + cp -f iso3166.tab $(TIMETABLES) $(DESTDIR)$(TZDIR)/. cp tzselect zic zdump $(DESTDIR)$(ETCDIR)/. cp libtz.a $(DESTDIR)$(LIBDIR)/. $(RANLIB) $(DESTDIR)$(LIBDIR)/libtz.a @@ -455,13 +456,18 @@ check_character_set: $(ENCHILADA) sharp='#' && \ ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ $(MISC) $(SOURCES) $(WEB_PAGES) && \ - ! grep -Env $(SAFE_SHARP_LINE) $(DATA) && \ + ! grep -Env $(SAFE_SHARP_LINE) $(YDATA) $(NDATA) iso3166.tab \ + zone.tab leapseconds $(LEAP_DEPS) yearistype.sh && \ test $$(grep -Ecv $(SAFE_SHARP_LINE) Makefile) -eq 1 && \ - ! grep -Env $(NONSYM_LINE) README NEWS Theory $(MANS) date.1 && \ + ! grep -Env $(NONSYM_LINE) README NEWS Theory $(MANS) date.1 \ + time.tab && \ ! grep -Env $(VALID_LINE) $(ENCHILADA) -check_tables: checktab.awk $(PRIMARY_YDATA) - $(AWK) -f checktab.awk $(PRIMARY_YDATA) +check_tables: checktab.awk $(PRIMARY_YDATA) $(TIMETABLES) + for tab in $(TIMETABLES); do \ + $(AWK) -f checktab.awk -v zone_table=$$tab $(PRIMARY_YDATA) \ + || exit; \ + done check_web: $(WEB_PAGES) $(VALIDATE_ENV) $(VALIDATE) $(VALIDATE_FLAGS) $(WEB_PAGES) @@ -540,7 +546,7 @@ check_public: $(ENCHILADA) # Check that the code works under various alternative # implementations of time_t. check_time_t_alternatives: - zones=`$(AWK) '/^[^#]/ { print $$3 }' <zone.tab` && \ + zones=`$(AWK) '/^[^#]/ { print $$3 }' <time.tab` && \ for type in $(TIME_T_ALTERNATIVES); do \ mkdir -p tzpublic/$$type && \ make clean_misc && \ diff --git a/NEWS b/NEWS index ffcbd92..babfdac 100644 --- a/NEWS +++ b/NEWS @@ -120,11 +120,22 @@ Unreleased, experimental changes Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 point. (Thanks to Vladimir Karpinsky for the Moscow changes.) - New link name + Changes affecting data format - New link Indian/Alfred_Faure for the Crozet Islands and the + A new file 'time.tab' supersedes 'zone.tab' in the installed data. + The new file's extended format allows multiple country codes per zone. + The older file is still installed but is deprecated; its format is + not changing and it will still be distributed for a while, but new + applications should use the new file. + + The new file format simplifies maintenance of obscure locations. + To test this, it adds coverage for the Crozet Islands and the Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) + The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. + It is still ASCII now, but commentary about the switch has been added. + The new file 'time.tab' already uses UTF-8. + Changes affecting code 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE diff --git a/Theory b/Theory index 05a9f65..591bba3 100644 --- a/Theory +++ b/Theory @@ -455,10 +455,10 @@ in decreasing order of importance: If a name is changed, put its old spelling in the 'backward' file. This means old spellings will continue to work. -The file 'zone.tab' lists geographical locations used to name time +The file 'time.tab' lists geographical locations used to name time zone rule files. It is intended to be an exhaustive list of names for geographic regions as described above; this is a subset of the -names in the data. Although a 'zone.tab' location's longitude +names in the data. Although a 'time.tab' location's longitude corresponds to its LMT offset with one hour for every 15 degrees east longitude, this relationship is not exact. diff --git a/africa b/africa index 3eef85f..3a68f88 100644 --- a/africa +++ b/africa @@ -978,7 +978,8 @@ Link Africa/Lagos Africa/Porto-Novo # Benin # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Indian/Reunion 3:41:52 - LMT 1911 Jun # Saint-Denis 4:00 - RET # Réunion Time -Link Indian/Reunion Indian/Alfred_Faure +# +# Crozet Islands also observes Réunion time; see the 'antarctica' file. # # Scattered Islands (Îles Éparses) administered from Réunion are as follows. # The following information about them is taken from diff --git a/antarctica b/antarctica index 9e9d118..912232a 100644 --- a/antarctica +++ b/antarctica @@ -162,7 +162,7 @@ Zone Antarctica/Mawson 0 - zzz 1954 Feb 13 # # French Southern Territories with year-round inhabitants # -# Alfred Faure, Crozet Islands, -462551+0515152, since 1964; +# Alfred Faure, Possession Island, Crozet Islands, -462551+0515152, since 1964; # sealing & whaling stations operated variously 1802/1911+; # see Indian/Reunion. # diff --git a/checktab.awk b/checktab.awk index 25a8d3f..ac40954 100644 --- a/checktab.awk +++ b/checktab.awk @@ -6,7 +6,7 @@ BEGIN { FS = "\t" if (!iso_table) iso_table = "iso3166.tab" - if (!zone_table) zone_table = "zone.tab" + if (!zone_table) zone_table = "time.tab" if (!want_warnings) want_warnings = -1 # A special (and we hope temporary) case. @@ -51,7 +51,6 @@ BEGIN { cc2NR[cc] = iso_NR } - zone_table = "zone.tab" cc0 = "" while (getline <zone_table) { @@ -62,7 +61,8 @@ BEGIN { zone_table, zone_NR >>"/dev/stderr" status = 1 } - cc = $1 + split($1, cca, /,/) + cc = cca[1] coordinates = $2 tz = $3 comments = $4 @@ -72,17 +72,20 @@ BEGIN { status = 1 } cc0 = cc - cctz = cc tz - cctztab[cctz] = 1 - tztab[tz] = 1 - tz2comments[cctz] = comments - tz2NR[tz] = zone_NR - if (cc2name[cc]) { + for (i in cca) { + cc = cca[i] + cctz = cc tz + cctztab[cctz] = 1 + tztab[tz] = 1 + tz2comments[tz] = comments + tz2NR[tz] = zone_NR + if (cc2name[cc]) { cc_used[cc]++ - } else { + } else { printf "%s:%d: %s: unknown country code\n", \ zone_table, zone_NR, cc >>"/dev/stderr" status = 1 + } } if (coordinates !~ /^[-+][0-9][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9]$/ \ && coordinates !~ /^[-+][0-9][0-9][0-5][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9][0-5][0-9]$/) { @@ -95,23 +98,26 @@ BEGIN { for (cctz in cctztab) { cc = substr (cctz, 1, 2) tz = substr (cctz, 3) - if (cc_used[cc] == 1) { - if (tz2comments[cctz]) { - printf "%s:%d: unnecessary comment '%s'\n", \ - zone_table, tz2NR[tz], \ - tz2comments[cctz] \ - >>"/dev/stderr" - status = 1 - } - } else { - if (!tz2comments[cctz]) { - printf "%s:%d: missing comment\n", \ - zone_table, tz2NR[tz] >>"/dev/stderr" - status = 1 - } + if (1 < cc_used[cc]) { + comments_needed[tz] = cc } } - + for (cctz in cctztab) { + cc = substr (cctz, 1, 2) + tz = substr (cctz, 3) + if (!comments_needed[tz] && tz2comments[tz]) { + printf "%s:%d: unnecessary comment '%s'\n", \ + zone_table, tz2NR[tz], tz2comments[tz] \ + >>"/dev/stderr" + tz2comments[tz] = 0 + status = 1 + } else if (comments_needed[tz] && !tz2comments[tz]) { + printf "%s:%d: missing comment for %s\n", \ + zone_table, tz2NR[tz], comments_needed[tz] \ + >>"/dev/stderr" + status = 1 + } + } FS = " " } @@ -122,7 +128,7 @@ $1 ~ /^#/ { next } if ($1 == "Zone") { tz = $2 ruleUsed[$4] = 1 - } else if ($1 == "Link") { + } else if ($1 == "Link" && zone_table == "zone.tab") { # Ignore Link commands if source and destination basenames # are identical, e.g. Europe/Istanbul versus Asia/Istanbul. src = $2 diff --git a/iso3166.tab b/iso3166.tab index 38d356d..0b0b842 100644 --- a/iso3166.tab +++ b/iso3166.tab @@ -3,21 +3,21 @@ # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # -# From Paul Eggert (2013-05-27): +# From Paul Eggert (2014-07-18): +# This file contains a table of two-letter country codes. Columns are +# separated by a single tab. Lines beginning with '#' are comments. +# Although all text currently uses ASCII encoding, this is planned to +# change to UTF-8 soon. The columns of the table are as follows: # -# This file contains a table with the following columns: # 1. ISO 3166-1 alpha-2 country code, current as of -# ISO 3166-1 Newsletter VI-15 (2013-05-10). See: Updates on ISO 3166 +# ISO 3166-1 Newsletter VI-16 (2013-07-11). See: Updates on ISO 3166 # http://www.iso.org/iso/home/standards/country_codes/updates_on_iso_3166.htm # 2. The usual English name for the coded region, # chosen so that alphabetic sorting of subsets produces helpful lists. # This is not the same as the English name in the ISO 3166 tables. # -# Columns are separated by a single tab. # The table is sorted by country code. # -# Lines beginning with '#' are comments. -# # This table is intended as an aid for users, to help them select time # zone data appropriate for their practical needs. It is not intended # to take or endorse any position on legal or territorial claims. diff --git a/time.tab b/time.tab new file mode 100644 index 0000000..74ca92c --- /dev/null +++ b/time.tab @@ -0,0 +1,371 @@ +# tz zone descriptions +# +# This file is in the public domain. +# +# From Paul Eggert (2014-07-18): +# This file contains a table where each row stands for a zone where +# civil time stamps have agreed since 1970. Columns are separated by +# a single tab. Lines beginning with '#' are comments. All text uses +# UTF-8 encoding. The columns of the table are as follows: +# +# 1. The countries that overlap the zone, as a comma-separated list +# of ISO 3166 2-character country codes. See the file 'iso3166.tab'. +# 2. Latitude and longitude of the zone's principal location +# in ISO 6709 sign-degrees-minutes-seconds format, +# either +-DDMM+-DDDMM or +-DDMMSS+-DDDMMSS, +# first latitude (+ is north), then longitude (+ is east). +# 3. Zone name used in value of TZ environment variable. +# Please see the 'Theory' file for how zone names are chosen. +# If multiple zones overlap a country, each has a row in the +# table, with each column 1 containing the country code. +# 4. Comments; present if and only if a country has multiple zones. +# +# If a zone covers multiple countries, the most-populous city is used, +# and that country is listed first in column 1; any other countries +# are listed alphabetically by country code. The table is sorted +# first by country code, then (if possible) by an order within the +# country that (1) makes some geographical sense, and (2) puts the +# most populous zones first, where that does not contradict (1). +# +# This table is intended as an aid for users, to help them select time +# zone data appropriate for their practical needs. It is not intended +# to take or endorse any position on legal or territorial claims. +# +#country- +#codes coordinates TZ comments +AD +4230+00131 Europe/Andorra +AE,OM +2518+05518 Asia/Dubai +AF +3431+06912 Asia/Kabul +AL +4120+01950 Europe/Tirane +AM +4011+04430 Asia/Yerevan +AQ -6734-06808 Antarctica/Rothera Rothera Station, Adelaide Island +AQ -6448-06406 Antarctica/Palmer Palmer Station, Anvers Island +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 -720041+0023206 Antarctica/Troll Troll Station, Queen Maud Land +AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) +AR -3124-06411 America/Argentina/Cordoba most locations (CB, CC, CN, ER, FM, MN, SE, SF) +AR -2447-06525 America/Argentina/Salta (SA, LP, NQ, RN) +AR -2411-06518 America/Argentina/Jujuy Jujuy (JY) +AR -2649-06513 America/Argentina/Tucuman Tucumán (TM) +AR -2828-06547 America/Argentina/Catamarca Catamarca (CT), Chubut (CH) +AR -2926-06651 America/Argentina/La_Rioja La Rioja (LR) +AR -3132-06831 America/Argentina/San_Juan San Juan (SJ) +AR -3253-06849 America/Argentina/Mendoza Mendoza (MZ) +AR -3319-06621 America/Argentina/San_Luis San Luis (SL) +AR -5138-06913 America/Argentina/Rio_Gallegos Santa Cruz (SC) +AR -5448-06818 America/Argentina/Ushuaia Tierra del Fuego (TF) +AS,UM -1416-17042 Pacific/Pago_Pago Samoa, Midway +AT +4813+01620 Europe/Vienna +AU -3133+15905 Australia/Lord_Howe Lord Howe Island +AU -5430+15857 Antarctica/Macquarie Macquarie Island +AU -4253+14719 Australia/Hobart Tasmania - most locations +AU -3956+14352 Australia/Currie Tasmania - King Island +AU -3749+14458 Australia/Melbourne Victoria +AU -3352+15113 Australia/Sydney New South Wales - most locations +AU -3157+14127 Australia/Broken_Hill New South Wales - Yancowinna +AU -2728+15302 Australia/Brisbane Queensland - most locations +AU -2016+14900 Australia/Lindeman Queensland - Holiday Islands +AU -3455+13835 Australia/Adelaide South Australia +AU -1228+13050 Australia/Darwin Northern Territory +AU -3157+11551 Australia/Perth Western Australia - most locations +AU -3143+12852 Australia/Eucla Western Australia - Eucla area +AZ +4023+04951 Asia/Baku +BB +1306-05937 America/Barbados +BD +2343+09025 Asia/Dhaka +BE +5050+00420 Europe/Brussels +BG +4241+02319 Europe/Sofia +BM +3217-06446 Atlantic/Bermuda +BN +0456+11455 Asia/Brunei +BO -1630-06809 America/La_Paz +BR -0351-03225 America/Noronha Atlantic islands +BR -0127-04829 America/Belem Amapá, E Pará +BR -0343-03830 America/Fortaleza NE Brazil (MA, PI, CE, RN, PB) +BR -0803-03454 America/Recife Pernambuco +BR -0712-04812 America/Araguaina Tocantins +BR -0940-03543 America/Maceio Alagoas, Sergipe +BR -1259-03831 America/Bahia Bahia +BR -2332-04637 America/Sao_Paulo S & SE Brazil (GO, DF, MG, ES, RJ, SP, PR, SC, RS) +BR -2027-05437 America/Campo_Grande Mato Grosso do Sul +BR -1535-05605 America/Cuiaba Mato Grosso +BR -0226-05452 America/Santarem W Pará +BR -0846-06354 America/Porto_Velho Rondônia +BR +0249-06040 America/Boa_Vista Roraima +BR -0308-06001 America/Manaus E Amazonas +BR -0640-06952 America/Eirunepe W Amazonas +BR -0958-06748 America/Rio_Branco Acre +BS +2505-07721 America/Nassau +BT +2728+08939 Asia/Thimphu +BY +5354+02734 Europe/Minsk +BZ +1730-08812 America/Belize +CA +4734-05243 America/St_Johns Newfoundland Time, including SE Labrador +CA +4439-06336 America/Halifax Atlantic Time - Nova Scotia (most places), PEI +CA +4612-05957 America/Glace_Bay Atlantic Time - Nova Scotia - places that did not observe DST 1966-1971 +CA +4606-06447 America/Moncton Atlantic Time - New Brunswick +CA +5320-06025 America/Goose_Bay Atlantic Time - Labrador - most locations +CA +5125-05707 America/Blanc-Sablon Atlantic Standard Time - Quebec - Lower North Shore +CA +4339-07923 America/Toronto Eastern Time - Ontario & Quebec - most locations +CA +4901-08816 America/Nipigon Eastern Time - Ontario & Quebec - places that did not observe DST 1967-1973 +CA +4823-08915 America/Thunder_Bay Eastern Time - Thunder Bay, Ontario +CA +6344-06828 America/Iqaluit Eastern Time - east Nunavut - most locations +CA +6608-06544 America/Pangnirtung Eastern Time - Pangnirtung, Nunavut +CA +744144-0944945 America/Resolute Central Time - Resolute, Nunavut +CA +484531-0913718 America/Atikokan Eastern Standard Time - Atikokan, Ontario and Southampton I, Nunavut +CA +624900-0920459 America/Rankin_Inlet Central Time - central Nunavut +CA +4953-09709 America/Winnipeg Central Time - Manitoba & west Ontario +CA +4843-09434 America/Rainy_River Central Time - Rainy River & Fort Frances, Ontario +CA +5024-10439 America/Regina Central Standard Time - Saskatchewan - most locations +CA +5017-10750 America/Swift_Current Central Standard Time - Saskatchewan - midwest +CA +5333-11328 America/Edmonton Mountain Time - Alberta, east British Columbia & west Saskatchewan +CA +690650-1050310 America/Cambridge_Bay Mountain Time - west Nunavut +CA +6227-11421 America/Yellowknife Mountain Time - central Northwest Territories +CA +682059-1334300 America/Inuvik Mountain Time - west Northwest Territories +CA +4906-11631 America/Creston Mountain Standard Time - Creston, British Columbia +CA +5946-12014 America/Dawson_Creek Mountain Standard Time - Dawson Creek & Fort Saint John, British Columbia +CA +4916-12307 America/Vancouver Pacific Time - west British Columbia +CA +6043-13503 America/Whitehorse Pacific Time - south Yukon +CA +6404-13925 America/Dawson Pacific Time - north Yukon +CC -1210+09655 Indian/Cocos +CH,DE,LI +4723+00832 Europe/Zurich Swiss time +CI,BF,GM,GN,ML,MR,SH,SL,SN,ST,TG +0519-00402 Africa/Abidjan +CK -2114-15946 Pacific/Rarotonga +CL -3327-07040 America/Santiago most locations +CL -2709-10926 Pacific/Easter Easter Island +CN +3114+12128 Asia/Shanghai Beijing Time +CN +4348+08735 Asia/Urumqi Xinjiang Time +CO +0436-07405 America/Bogota +CR +0956-08405 America/Costa_Rica +CU +2308-08222 America/Havana +CV +1455-02331 Atlantic/Cape_Verde +CW,AW,BQ,SX +1211-06900 America/Curacao +CX -1025+10543 Indian/Christmas +CY +3510+03322 Asia/Nicosia +CZ,SK +5005+01426 Europe/Prague +DE +5230+01322 Europe/Berlin Berlin time +DK +5540+01235 Europe/Copenhagen +DO +1828-06954 America/Santo_Domingo +DZ +3647+00303 Africa/Algiers +EC -0210-07950 America/Guayaquil mainland +EC -0054-08936 Pacific/Galapagos Galápagos Islands +EE +5925+02445 Europe/Tallinn +EG +3003+03115 Africa/Cairo +EH +2709-01312 Africa/El_Aaiun +ES +4024-00341 Europe/Madrid mainland +ES +3553-00519 Africa/Ceuta Ceuta & Melilla +ES +2806-01524 Atlantic/Canary Canary Islands +FI,AX +6010+02458 Europe/Helsinki +FJ -1808+17825 Pacific/Fiji +FK -5142-05751 Atlantic/Stanley +FM +0725+15147 Pacific/Chuuk Chuuk (Truk) and Yap +FM +0658+15813 Pacific/Pohnpei Pohnpei (Ponape) +FM +0519+16259 Pacific/Kosrae Kosrae +FO +6201-00646 Atlantic/Faroe +FR +4852+00220 Europe/Paris +GB,GG,IM,JE +513030-0000731 Europe/London +GE +4143+04449 Asia/Tbilisi +GF +0456-05220 America/Cayenne +GH +0533-00013 Africa/Accra +GI +3608-00521 Europe/Gibraltar +GL +6411-05144 America/Godthab most locations +GL +7646-01840 America/Danmarkshavn east coast, north of Scoresbysund +GL +7029-02158 America/Scoresbysund Scoresbysund / Ittoqqortoormiit +GL +7634-06847 America/Thule Thule / Pituffik +GR +3758+02343 Europe/Athens +GS -5416-03632 Atlantic/South_Georgia +GT +1438-09031 America/Guatemala +GU,MP +1328+14445 Pacific/Guam +GW +1151-01535 Africa/Bissau +GY +0648-05810 America/Guyana +HK +2217+11409 Asia/Hong_Kong +HN +1406-08713 America/Tegucigalpa +HT +1832-07220 America/Port-au-Prince +HU +4730+01905 Europe/Budapest +ID -0610+10648 Asia/Jakarta Java & Sumatra +ID -0002+10920 Asia/Pontianak west & central Borneo +ID -0507+11924 Asia/Makassar east & south Borneo, Sulawesi (Celebes), Bali, Nusa Tengarra, west Timor +ID -0232+14042 Asia/Jayapura west New Guinea (Irian Jaya) & Malukus (Moluccas) +IE +5320-00615 Europe/Dublin +IL +314650+0351326 Asia/Jerusalem +IN +2232+08822 Asia/Kolkata +IO -0720+07225 Indian/Chagos +IQ +3321+04425 Asia/Baghdad +IR +3540+05126 Asia/Tehran +IS +6409-02151 Atlantic/Reykjavik +IT,SM,VA +4154+01229 Europe/Rome +JM +175805-0764736 America/Jamaica +JO +3157+03556 Asia/Amman +JP +353916+1394441 Asia/Tokyo +KE,DJ,ER,ET,KM,MG,SO,TZ,UG,YT -0117+03649 Africa/Nairobi +KG +4254+07436 Asia/Bishkek +KI +0125+17300 Pacific/Tarawa Gilbert Islands +KI -0308-17105 Pacific/Enderbury Phoenix Islands +KI +0152-15720 Pacific/Kiritimati Line Islands +KP +3901+12545 Asia/Pyongyang +KR +3733+12658 Asia/Seoul +KZ +4315+07657 Asia/Almaty most locations +KZ +4448+06528 Asia/Qyzylorda Qyzylorda (Kyzylorda, Kzyl-Orda) +KZ +5017+05710 Asia/Aqtobe Aqtobe (Aktobe) +KZ +4431+05016 Asia/Aqtau Atyrau (Atirau, Gur'yev), Mangghystau (Mankistau) +KZ +5113+05121 Asia/Oral West Kazakhstan +LB +3353+03530 Asia/Beirut +LK +0656+07951 Asia/Colombo +LR +0618-01047 Africa/Monrovia +LT +5441+02519 Europe/Vilnius +LU +4936+00609 Europe/Luxembourg +LV +5657+02406 Europe/Riga +LY +3254+01311 Africa/Tripoli +MA +3339-00735 Africa/Casablanca +MC +4342+00723 Europe/Monaco +MD +4700+02850 Europe/Chisinau +MH +0709+17112 Pacific/Majuro most locations +MH +0905+16720 Pacific/Kwajalein Kwajalein +MM +1647+09610 Asia/Rangoon +MN +4755+10653 Asia/Ulaanbaatar most locations +MN +4801+09139 Asia/Hovd Bayan-Ölgii, Govi-Altai, Hovd, Uvs, Zavkhan +MN +4804+11430 Asia/Choibalsan Dornod, Sükhbaatar +MO +2214+11335 Asia/Macau +MQ +1436-06105 America/Martinique +MT +3554+01431 Europe/Malta +MU -2010+05730 Indian/Mauritius +MV +0410+07330 Indian/Maldives +MX +1924-09909 America/Mexico_City Central Time - most locations +MX +2105-08646 America/Cancun Central Time - Quintana Roo +MX +2058-08937 America/Merida Central Time - Campeche, Yucatán +MX +2540-10019 America/Monterrey Mexican Central Time - Coahuila, Durango, Nuevo León, Tamaulipas away from US border +MX +2550-09730 America/Matamoros US Central Time - Coahuila, Durango, Nuevo León, Tamaulipas near US border +MX +2313-10625 America/Mazatlan Mountain Time - S Baja, Nayarit, Sinaloa +MX +2838-10605 America/Chihuahua Mexican Mountain Time - Chihuahua away from US border +MX +2934-10425 America/Ojinaga US Mountain Time - Chihuahua near US border +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 - Bahía de Banderas +MY +0310+10142 Asia/Kuala_Lumpur peninsular Malaysia +MY +0133+11020 Asia/Kuching Sabah & Sarawak +MZ,BI,BW,CD,MW,RW,ZM,ZW -2558+03235 Africa/Maputo Central Africa Time (UTC+2) +NA -2234+01706 Africa/Windhoek +NC -2216+16627 Pacific/Noumea +NF -2903+16758 Pacific/Norfolk +NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE +0627+00324 Africa/Lagos West Africa Time (UTC+1) +NI +1209-08617 America/Managua +NL +5222+00454 Europe/Amsterdam +NO,SJ +5955+01045 Europe/Oslo +NP +2743+08519 Asia/Kathmandu +NR -0031+16655 Pacific/Nauru +NU -1901-16955 Pacific/Niue +NZ,AQ -3652+17446 Pacific/Auckland New Zealand time +NZ -4357-17633 Pacific/Chatham Chatham Islands +PA,KY +0858-07932 America/Panama +PE -1203-07703 America/Lima +PF -1732-14934 Pacific/Tahiti Society Islands +PF -0900-13930 Pacific/Marquesas Marquesas Islands +PF -2308-13457 Pacific/Gambier Gambier Islands +PG -0930+14710 Pacific/Port_Moresby +PH +1435+12100 Asia/Manila +PK +2452+06703 Asia/Karachi +PL +5215+02100 Europe/Warsaw +PM +4703-05620 America/Miquelon +PN -2504-13005 Pacific/Pitcairn +PR +182806-0660622 America/Puerto_Rico +PS +3130+03428 Asia/Gaza Gaza Strip +PS +313200+0350542 Asia/Hebron West Bank +PT +3843-00908 Europe/Lisbon mainland +PT +3238-01654 Atlantic/Madeira Madeira Islands +PT +3744-02540 Atlantic/Azores Azores +PW +0720+13429 Pacific/Palau +PY -2516-05740 America/Asuncion +QA,BH +2517+05132 Asia/Qatar +RE,TF -2052+05528 Indian/Reunion Réunion, Crozet Is, Scattered Is +RO +4426+02606 Europe/Bucharest +RS,BA,HR,ME,MK,SI +4450+02030 Europe/Belgrade +RU +5443+02030 Europe/Kaliningrad Moscow-01 - Kaliningrad +RU +554521+0373704 Europe/Moscow Moscow+00 - west Russia +RU +4457+03406 Europe/Simferopol Moscow+00 - Crimea +RU +4844+04425 Europe/Volgograd Moscow+00 - Caspian Sea +RU +5312+05009 Europe/Samara Moscow+00 (Moscow+01 after 2014-10-26) - Samara, Udmurtia +RU +5651+06036 Asia/Yekaterinburg Moscow+02 - Urals +RU +5500+07324 Asia/Omsk Moscow+03 - west Siberia +RU +5502+08255 Asia/Novosibirsk Moscow+03 - Novosibirsk +RU +5345+08707 Asia/Novokuznetsk Moscow+03 (Moscow+04 after 2014-10-26) - Kemerovo +RU +5601+09250 Asia/Krasnoyarsk Moscow+04 - Yenisei River +RU +5216+10420 Asia/Irkutsk Moscow+05 - Lake Baikal +# Add this once the 2014-10-26 Russian change becomes official: +#RU +5203+11328 Asia/Chita Moscow+06 (Moscow+05 after 2014-10-26) - Zabaykalsky +RU +6200+12940 Asia/Yakutsk Moscow+06 - Lena River +RU +623923+1353314 Asia/Khandyga Moscow+06 - Tomponsky, Ust-Maysky +RU +4310+13156 Asia/Vladivostok Moscow+07 - Amur River +RU +4658+14242 Asia/Sakhalin Moscow+07 - Sakhalin Island +RU +643337+1431336 Asia/Ust-Nera Moscow+07 - Oymyakonsky +RU +5934+15048 Asia/Magadan Moscow+08 (Moscow+07 after 2014-10-26) - Magadan +# Add this once the 2014-10-26 Russian change becomes official: +#RU +6728+15343 Asia/Srednekolymsk Moscow+08 - E Sakha, N Kuril Is +RU +5301+15839 Asia/Kamchatka Moscow+08 (Moscow+09 after 2014-10-26) - Kamchatka +RU +6445+17729 Asia/Anadyr Moscow+08 (Moscow+09 after 2014-10-26) - Bering Sea +SA,KW,YE +2438+04643 Asia/Riyadh +SB -0932+16012 Pacific/Guadalcanal +SC -0440+05528 Indian/Mahe +SD,SS +1536+03232 Africa/Khartoum +SE +5920+01803 Europe/Stockholm +SG +0117+10351 Asia/Singapore +SR +0550-05510 America/Paramaribo +SV +1342-08912 America/El_Salvador +SY +3330+03618 Asia/Damascus +TC +2128-07108 America/Grand_Turk +TD +1207+01503 Africa/Ndjamena +TF -492110+0701303 Indian/Kerguelen Kerguelen, St Paul I, Amsterdam I +TH,KH,LA,VN +1345+10031 Asia/Bangkok +TJ +3835+06848 Asia/Dushanbe +TK -0922-17114 Pacific/Fakaofo +TL -0833+12535 Asia/Dili +TM +3757+05823 Asia/Ashgabat +TN +3648+01011 Africa/Tunis +TO -2110-17510 Pacific/Tongatapu +TR +4101+02858 Europe/Istanbul +TT,AG,AI,BL,DM,GD,GP,MF,LC,KN,MS,VC,VG,VI +1039-06131 America/Port_of_Spain +TV -0831+17913 Pacific/Funafuti +TW +2503+12130 Asia/Taipei +UA +5026+03031 Europe/Kiev most locations +UA +4837+02218 Europe/Uzhgorod Ruthenia +UA +4750+03510 Europe/Zaporozhye Zaporozh'ye, E Lugansk / Zaporizhia, E Luhansk +UM +1917+16637 Pacific/Wake Wake Island +US +404251-0740023 America/New_York Eastern Time +US +421953-0830245 America/Detroit Eastern Time - Michigan - most locations +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 +384038-0873143 America/Indiana/Vincennes Eastern Time - Indiana - Daviess, Dubois, Knox & Martin Counties +US +410305-0863611 America/Indiana/Winamac Eastern Time - Indiana - Pulaski County +US +382232-0862041 America/Indiana/Marengo Eastern Time - Indiana - Crawford County +US +382931-0871643 America/Indiana/Petersburg Eastern Time - Indiana - Pike County +US +384452-0850402 America/Indiana/Vevay Eastern Time - Indiana - Switzerland County +US +415100-0873900 America/Chicago Central Time +US +375711-0864541 America/Indiana/Tell_City Central Time - Indiana - Perry County +US +411745-0863730 America/Indiana/Knox Central Time - Indiana - Starke 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 +US +465042-1012439 America/North_Dakota/New_Salem Central Time - North Dakota - Morton County (except Mandan area) +US +471551-1014640 America/North_Dakota/Beulah Central Time - North Dakota - Mercer County +US +394421-1045903 America/Denver Mountain Time +US +433649-1161209 America/Boise Mountain Time - south Idaho & east Oregon +US +332654-1120424 America/Phoenix Mountain Standard Time - Arizona (except Navajo) +US +340308-1181434 America/Los_Angeles Pacific Time +US +550737-1313435 America/Metlakatla Pacific Standard Time - Annette Island, Alaska +US +611305-1495401 America/Anchorage Alaska Time +US +581807-1342511 America/Juneau Alaska Time - Alaska panhandle +US +571035-1351807 America/Sitka Alaska Time - southeast Alaska panhandle +US +593249-1394338 America/Yakutat Alaska Time - Alaska panhandle neck +US +643004-1652423 America/Nome Alaska Time - west Alaska +US +515248-1763929 America/Adak Aleutian Islands +US,UM +211825-1575130 Pacific/Honolulu Hawaii time +UY -3453-05611 America/Montevideo +UZ +3940+06648 Asia/Samarkand west Uzbekistan +UZ +4120+06918 Asia/Tashkent east Uzbekistan +VE +1030-06656 America/Caracas +VU -1740+16825 Pacific/Efate +WF -1318-17610 Pacific/Wallis +WS -1350-17144 Pacific/Apia +ZA,LS,SZ -2615+02800 Africa/Johannesburg diff --git a/tzselect.8 b/tzselect.8 index 7644112..30375a5 100644 --- a/tzselect.8 +++ b/tzselect.8 @@ -99,8 +99,8 @@ Name of the directory containing time zone data files (default: \f2TZDIR\fP\f3/iso3166.tab\fP Table of ISO 3166 2-letter country codes and country names. .TP -\f2TZDIR\fP\f3/zone.tab\fP -Tables of country codes, latitude and longitude, zone names, and +\f2TZDIR\fP\f3/time.tab\fP +Table of country codes, latitude and longitude, zone names, and descriptive comments. .TP \f2TZDIR\fP\f3/\fP\f2TZ\fP diff --git a/tzselect.ksh b/tzselect.ksh index 963001a..e799a1a 100644 --- a/tzselect.ksh +++ b/tzselect.ksh @@ -46,6 +46,7 @@ REPORT_BUGS_TO=tz(a)iana.org coord= location_limit=10 +zonetabtype=time usage="Usage: tzselect [--version] [--help] [-c COORD] [-n LIMIT] Select a time zone interactively. @@ -146,6 +147,8 @@ do coord=$OPTARG ;; n*) location_limit=$OPTARG ;; + t*) # Undocumented option, used for developer testing. + zonetabtype=$OPTARG ;; -help) exec echo "$usage" ;; -version) @@ -165,10 +168,10 @@ esac # Make sure the tables are readable. TZ_COUNTRY_TABLE=$TZDIR/iso3166.tab -TZ_ZONE_TABLE=$TZDIR/zone.tab +TZ_ZONE_TABLE=$TZDIR/$zonetabtype.tab for f in $TZ_COUNTRY_TABLE $TZ_ZONE_TABLE do - <$f || { + <"$f" || { echo >&2 "$0: time zone files are not set up correctly" exit 1 } @@ -232,7 +235,13 @@ output_distances=' /^[^#]/ { here_lat = convert_latitude($2) here_long = convert_longitude($2) - line = $1 "\t" $2 "\t" $3 "\t" country[$1] + line = $1 "\t" $2 "\t" $3 + sep = "\t" + ncc = split($1, cc, /,/) + for (i = 1; i <= ncc; i++) { + line = line sep country[cc[i]] + sep = ", " + } if (NF == 4) line = line " - " $4 printf "%g\t%s\n", dist(coord_lat, coord_long, here_lat, here_long), line @@ -269,7 +278,7 @@ while entry = entry " Ocean" printf "'\''%s'\''\n", entry } - ' $TZ_ZONE_TABLE | + ' <"$TZ_ZONE_TABLE" | sort -u | tr '\n' ' ' echo '' @@ -327,7 +336,7 @@ while distance_table=`$AWK \ -v coord="$coord" \ -v TZ_COUNTRY_TABLE="$TZ_COUNTRY_TABLE" \ - "$output_distances" <$TZ_ZONE_TABLE | + "$output_distances" <"$TZ_ZONE_TABLE" | sort -n | sed "${location_limit}q" ` @@ -355,7 +364,9 @@ while BEGIN { FS = "\t" } /^#/ { next } $3 ~ ("^" continent "/") { - if (!cc_seen[$1]++) cc_list[++ccs] = $1 + ncc = split($1, cc, /,/) + for (i = 1; i <= ncc; i++) + if (!cc_seen[cc[i]]++) cc_list[++ccs] = cc[i] } END { while (getline <TZ_COUNTRY_TABLE) { @@ -369,7 +380,7 @@ while print country } } - ' <$TZ_ZONE_TABLE | sort -f` + ' <"$TZ_ZONE_TABLE" | sort -f` # If there's more than one country, ask the user which one. @@ -399,8 +410,8 @@ while } } } - $1 == cc { print $4 } - ' <$TZ_ZONE_TABLE` + $1 ~ cc { print $4 } + ' <"$TZ_ZONE_TABLE"` # If there's more than one region, ask the user which one. @@ -430,13 +441,13 @@ while } } } - $1 == cc && $4 == region { print $3 } - ' <$TZ_ZONE_TABLE` + $1 ~ cc && $4 == region { print $3 } + ' <"$TZ_ZONE_TABLE"` esac # Make sure the corresponding zoneinfo file exists. TZ_for_date=$TZDIR/$TZ - <$TZ_for_date || { + <"$TZ_for_date" || { echo >&2 "$0: time zone files are not set up correctly" exit 1 } diff --git a/zone.tab b/zone.tab index 2ca3cbc..dfc5703 100644 --- a/zone.tab +++ b/zone.tab @@ -1,32 +1,20 @@ -# TZ zone descriptions +# tz zone descriptions (deprecated version) # # This file is in the public domain, so clarified as of # 2009-05-17 by Arthur David Olson. # -# From Paul Eggert (2013-08-14): +# From Paul Eggert (2014-07-18): +# This file is intended as a backward-compatibility aid for older programs. +# New programs should use time.tab. This file is like time.tab (see +# time.tab's comments), but with the following additional restrictions: # -# This file contains a table where each row stands for an area that is -# the intersection of a region identified by a country code and of a -# zone where civil clocks have agreed since 1970. The columns of the -# table are as follows: +# 1. This file contains only ASCII characters. +# 2. The first data column contains exactly one country code. # -# 1. ISO 3166 2-character country code. See the file 'iso3166.tab'. -# 2. Latitude and longitude of the area's principal location -# in ISO 6709 sign-degrees-minutes-seconds format, -# either +-DDMM+-DDDMM or +-DDMMSS+-DDDMMSS, -# first latitude (+ is north), then longitude (+ is east). -# 3. Zone name used in value of TZ environment variable. -# Please see the 'Theory' file for how zone names are chosen. -# If multiple zones overlap a country, each has a row in the -# table, with column 1 being duplicated. -# 4. Comments; present if and only if the country has multiple rows. -# -# Columns are separated by a single tab. -# The table is sorted first by country, then an order within the country that -# (1) makes some geographical sense, and -# (2) puts the most populous areas first, where that does not contradict (1). -# -# Lines beginning with '#' are comments. +# Because of (2), each row stands for an area that is the intersection +# of a region identified by a country code and of a zone where civil +# clocks have agreed since 1970; this is a narrower definition than +# that of time.tab. # # This table is intended as an aid for users, to help them select time # zone data appropriate for their practical needs. It is not intended @@ -384,8 +372,7 @@ SY +3330+03618 Asia/Damascus SZ -2618+03106 Africa/Mbabane TC +2128-07108 America/Grand_Turk TD +1207+01503 Africa/Ndjamena -TF -492110+0701303 Indian/Kerguelen Kerguelen, St Paul I, Amsterdam I -TF -462551+0515125 Indian/Alfred_Faure Crozet Is, Scattered Is +TF -492110+0701303 Indian/Kerguelen TG +0608+00113 Africa/Lome TH +1345+10031 Asia/Bangkok TJ +3835+06848 Asia/Dushanbe -- 1.9.1

6 12

Proposed update to tz-link.htm for Microsoft Windows
by Matt Johnson Aug. 11, 2014

Aug. 11, 2014

Please find attached a patch which contains more specific information about time zone support in Microsoft Windows. In particular, I'm correcting the previous information which stated that the Windows time zone format was undocumented. I've provided links to all of the relevant documentation. I've also clarified the use of TZ data in the new Windows Runtime APIs. The previous text made it sound like DateTimeFormatter can perform CLDR conversions, which it cannot. Please let me know if there are any suggested revisions. Thanks, Matt

2 3

Follow up to post earlier
by Lester Caine Aug. 11, 2014

Aug. 11, 2014

Have brought my tzdata clone up to date, and re-merged the new data. http://hg.lsces.org.uk/hg/tzdata/rev/c8017bbdb194 In the process of checking things, I found a few broken links in the europe file http://hg.lsces.org.uk/hg/tz/rev/f998f498222b Have several extra links to go with Joseph's UK details as well ... A lot of the material has now been scanned and is on-line. -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk

2 1

[PATCH] Don't put leapseconds.awk in tzdata tarball.
by Paul Eggert Aug. 11, 2014

Aug. 11, 2014

This harmless bug was introduced in release 2014f, which distributed leapseconds.awk in both the code and the data tarballs. It's code, so it should be in the code tarball. * Makefile (DATA): Omit leapseconds.awk. (check_character_set): Omit redundant check of $(LEAP_DEPS). --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index ee02f73..03ee556 100644 --- a/Makefile +++ b/Makefile @@ -344,7 +344,7 @@ ZONETABLES= zone1970.tab zone.tab TABDATA= iso3166.tab leapseconds $(ZONETABLES) LEAP_DEPS= leapseconds.awk leap-seconds.list DATA= $(YDATA) $(NDATA) $(TABDATA) \ - $(LEAP_DEPS) yearistype.sh + leap-seconds.list yearistype.sh AWK_SCRIPTS= checktab.awk leapseconds.awk MISC= $(AWK_SCRIPTS) workman.sh zoneinfo2tdf.pl ENCHILADA= $(COMMON) $(DOCS) $(SOURCES) $(DATA) $(MISC) @@ -457,7 +457,7 @@ check_character_set: $(ENCHILADA) ! grep -Env $(SAFE_LINE) $(MANS) date.1 $(MANTXTS) \ $(MISC) $(SOURCES) $(WEB_PAGES) && \ ! grep -Env $(SAFE_SHARP_LINE) $(YDATA) $(NDATA) iso3166.tab \ - zone.tab leapseconds $(LEAP_DEPS) yearistype.sh && \ + zone.tab leapseconds yearistype.sh && \ test $$(grep -Ecv $(SAFE_SHARP_LINE) Makefile) -eq 1 && \ ! grep -Env $(NONSYM_LINE) README NEWS Theory $(MANS) date.1 \ zone1970.tab && \ -- 1.9.1

2 2

[PATCH] Minor spelling, accent, and spacing fixes.
by Paul Eggert Aug. 11, 2014

Aug. 11, 2014

In particular, this patch is makes the commentary more systematic about preferring "time zone" to "timezone" except when quoting someone else or when talking about code that uses "timezone". --- NEWS | 10 +++++----- README | 6 +++--- Theory | 6 +++--- africa | 2 +- asia | 2 +- australasia | 2 +- leapseconds.awk | 2 +- newctime.3 | 2 +- northamerica | 8 ++++---- southamerica | 12 ++++++------ tz-link.htm | 9 ++++----- zic.8 | 2 +- 12 files changed, 31 insertions(+), 32 deletions(-) diff --git a/NEWS b/NEWS index e7bafe8..30924d1 100644 --- a/NEWS +++ b/NEWS @@ -184,7 +184,7 @@ Release 2014f - 2014-08-05 17:42:36 -0700 are not already surrounded by white space. (Thanks to suggestions by Steffen Nurpmeso.) - There is new commentary about Xujiahui Observatory, the five timezone + There is new commentary about Xujiahui Observatory, the five time-zone project in China from 1918 to 1949, timekeeping in Japanese-occupied Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the warlord Jin Shuren in the data. @@ -479,7 +479,7 @@ Release 2013h - 2013-10-25 15:32:32 -0700 Changes affecting documentation and commentary - tz-link.htm now mentions TC TIMEZONE's draft timezone service protocol + tz-link.htm now mentions TC TIMEZONE's draft time zone service protocol (thanks to Mike Douglass) and TimezoneJS.Date (thanks to Jim Fehrle). Update URLs in tz-link page. Add URLs for Microsoft Windows, since @@ -679,7 +679,7 @@ Release 2013e - 2013-09-19 23:50:04 -0700 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.) + 'int_fast32_t'. (Thanks to Christos Zoulas.) The code avoids undefined behavior on integer overflow in some more places, including gmtime, localtime, mktime and zdump. @@ -1110,7 +1110,7 @@ Release 2012a - 2012-03-01 18:28:10 +0700 Other minor changes are: Corrections to 1918 Canadian summer time end dates. - Updated URL for UK timezone history (in comments) + Updated URL for UK time zone history (in comments) A few typos in Le Corre's list of free French place names (comments) @@ -2668,7 +2668,7 @@ numbers. Release time stamps are taken from the release's commit (for newer, git releases), from the newest file in the tarball (for older releases, where this info is available) or from the email announcing -the release (if all else fails; these are marked with a timezone of +the release (if all else fails; these are marked with a time zone of -0000 and an "is missing!" comment). Earlier versions of the code and data were not announced on the tz diff --git a/README b/README index 0b0bbbe..a6796d7 100644 --- a/README +++ b/README @@ -50,13 +50,13 @@ If you know that the rules are different from those in a file, by all means feel free to change a file (and please send the changed version to tz(a)iana.org for use in the future). Europeans take note! -Thanks to these Timezone Caballeros who've made major contributions to the -time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; +Thanks to these Time Zone Caballeros who've made major contributions to the +time conversion package: Keith Bostic; Bob Devine; Paul Eggert; Robert Elz; Guy Harris; Mark Horton; John Mackin; and Bradley White. Thanks also to Michael Bloom, Art Neilson, Stephen Prince, John Sovereign, and Frank Wales for testing work, and to Gwillim Law for checking local mean time data. Thanks in particular to Arthur David Olson, the project's founder and first -maintainer, to whom the timezone community owes the greatest debt of all. +maintainer, to whom the time zone community owes the greatest debt of all. None of them are responsible for remaining errors. Look in <ftp://ftp.iana.org/tz/releases/> for updated versions of these files. diff --git a/Theory b/Theory index d23dac3..42070e4 100644 --- a/Theory +++ b/Theory @@ -127,7 +127,7 @@ These are the extensions that have been made to the POSIX functions: consideration was given to using some other environment variable (for example, "TIMEZONE") to hold the string used to generate the time zone information file name. In the end, however, it was decided - to continue using "TZ": it is widely used for time zone purposes; + to continue using "TZ": it is widely used for time zone purposes; separately maintaining both "TZ" and "TIMEZONE" seemed a nuisance; and systems where "new" forms of "TZ" might cause problems can simply use TZ values such as "EST5EDT" which can be used both by @@ -710,9 +710,9 @@ Gregorian calendar: The Russian empire (including Finland and the Baltic states) did not convert to the Gregorian calendar until the Soviet revolution of 1917. -Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen +Source: H. Grotefend, _Taschenbuch der Zeitrechnung des deutschen Mittelalters und der Neuzeit_, herausgegeben von Dr. O. Grotefend -(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28. +(Hannover: Hahnsche Buchhandlung, 1941), pp. 26-28. ----- Time and time zones on Mars ----- diff --git a/africa b/africa index 339d6c4..9f819f7 100644 --- a/africa +++ b/africa @@ -606,7 +606,7 @@ Zone Africa/Blantyre 2:20:00 - LMT 1903 Mar # From Alex Krivenyshev (2008-07-11): # Seems that English language article "The revival of daylight saving -# time: Energy conservation?"-# No. 16578 (07/11/2008) was originally +# time: Energy conservation?"-# No. 16578 (07/11/2008) was originally # published on Monday, June 30, 2008... # # I guess that article in French "Le gouvernement avance l'introduction diff --git a/asia b/asia index 2536f72..09aaa24 100644 --- a/asia +++ b/asia @@ -1915,7 +1915,7 @@ Zone Asia/Hovd 6:06:36 - LMT 1905 Aug Zone Asia/Ulaanbaatar 7:07:32 - LMT 1905 Aug 7:00 - ULAT 1978 # Ulaanbaatar Time 8:00 Mongol ULA%sT -# Choibalsan, a.k.a. Bajan Tuemen, Bajan Tumen, Chojbalsan, +# Choibalsan, a.k.a. Bajan Tümen, Bajan Tumen, Chojbalsan, # Choybalsan, Sanbejse, Tchoibalsan Zone Asia/Choibalsan 7:38:00 - LMT 1905 Aug 7:00 - ULAT 1978 diff --git a/australasia b/australasia index 4911e8d..2ee4cbe 100644 --- a/australasia +++ b/australasia @@ -717,7 +717,7 @@ Zone Pacific/Funafuti 11:56:52 - LMT 1901 # From Mark Brader (2005-01-23): # [Fallacies and Fantasies of Air Transport History, by R.E.G. Davies, # published 1994 by Paladwr Press, McLean, VA, USA; ISBN 0-9626483-5-3] -# reproduced a Pan American Airways timeables from 1936, for their weekly +# reproduced a Pan American Airways timetable from 1936, for their weekly # "Orient Express" flights between San Francisco and Manila, and connecting # flights to Chicago and the US East Coast. As it uses some time zone # designations that I've never seen before:.... diff --git a/leapseconds.awk b/leapseconds.awk index 739615a..c2079dc 100644 --- a/leapseconds.awk +++ b/leapseconds.awk @@ -3,7 +3,7 @@ # This file is in the public domain. BEGIN { - print "# Allowance for leapseconds added to each timezone file." + print "# Allowance for leap seconds added to each time zone file." print "" print "# This file is in the public domain." print "" diff --git a/newctime.3 b/newctime.3 index 2e1d937..dccab77 100644 --- a/newctime.3 +++ b/newctime.3 @@ -189,7 +189,7 @@ includes the following fields: int tm_wday; /\(** day of week (Sunday = 0) \(**/ int tm_yday; /\(** day of year (0\*(en365) \(**/ int tm_isdst; /\(** is summer time in effect? \(**/ - char \(**tm_zone; /\(** abbreviation of timezone name \(**/ + char \(**tm_zone; /\(** abbreviation of time zone name \(**/ long tm_gmtoff; /\(** offset from UT in seconds \(**/ .fi .RE diff --git a/northamerica b/northamerica index 7074d31..9a306b8 100644 --- a/northamerica +++ b/northamerica @@ -545,7 +545,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 # Minutes of the Unalaska City Council Meeting, January 10, 1967: # "Except for St. Paul and Akutan, Unalaska is the only important # location not on Alaska Standard Time. The following resolution was -# made by William Robinson and seconded by Henry Swanson: Be it +# made by William Robinson and seconded by Henry Swanson: Be it # resolved that the City of Unalaska hereby goes to Alaska Standard # Time as of midnight Friday, January 13, 1967 (1 A.M. Saturday, # January 14, Alaska Standard Time.) This resolution was passed with @@ -578,7 +578,7 @@ Zone America/Adak 12:13:21 - LMT 1867 Oct 18 # year, the standard time of this Territory shall be advanced one # hour...This Act shall take effect upon its approval. Approved this 26th # day of April, A. D. 1933. LAWRENCE M JUDD, Governor of the Territory of -# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is +# Hawaii." Page 172: "Act 163...Act 90 of the Session Laws of 1933 is # hereby repealed...This Act shall take effect upon its approval, upon # which date the standard time of this Territory shall be restored to # that existing immediately prior to the taking effect of said Act 90. @@ -1827,7 +1827,7 @@ Zone America/Edmonton -7:33:52 - LMT 1906 Sep # 1. 1884 or 1885: adoption of Mountain Standard Time (GMT-7) # Exact date unknown # 2. Oct 1916: switch to Pacific Standard Time (GMT-8) -# Exact date in October unknown; Sunday October 1 is a reasonable guess. +# Exact date in October unknown; Sunday October 1 is a reasonable guess. # 3. June 1918: switch to Pacific Daylight Time (GMT-7) # Exact date in June unknown; Sunday June 2 is a reasonable guess. # note#1: @@ -3034,7 +3034,7 @@ Zone America/Martinique -4:04:20 - LMT 1890 # Fort-de-France # From Gwillim Law (2005-04-21): # The Associated Press story on the time change, which can be found at # http://www.lapalmainteractivo.com/guias/content/gen/ap/America_Latina/AMC_G… -# and elsewhere, says (fifth paragraph, translated from Spanish): "The last +# and elsewhere, says (fifth paragraph, translated from Spanish): "The last # time that a change of clocks was applied to save energy was in the year 2000 # during the Arnoldo Alemán administration."... # The northamerica file says that Nicaragua has been on UTC-6 continuously diff --git a/southamerica b/southamerica index ba88fd2..e0c83ac 100644 --- a/southamerica +++ b/southamerica @@ -225,9 +225,9 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # It's Law No. 7,210. This change is due to a public power emergency, so for # now we'll assume it's for this year only. # -# From Paul Eggert (2006-03-22): -# Hora de verano para la Republica Argentina (2003-06-08) -# <http://www.spicasc.net/horvera.html> +# From Paul Eggert (2014-08-09): +# Hora de verano para la República Argentina +# http://buenasiembra.com.ar/esoterismo/astrologia/hora-de-verano-de-la-repub… # says that standard time in Argentina from 1894-10-31 # to 1920-05-01 was -4:16:48.25. Go with this more-precise value # over Shanks & Pottenger. @@ -394,7 +394,7 @@ Rule Arg 2008 only - Oct Sun>=15 0:00 1:00 S # ... # From Alexander Krivenyshev (2010-04-09): -# According to news reports from El Diario de la Republica Province San +# According to news reports from El Diario de la República Province San # Luis, Argentina (standard time UTC-04) will keep Daylight Saving Time # after April 11, 2010 - will continue to have same time as rest of # Argentina (UTC-3) (no DST). @@ -685,7 +685,7 @@ Zone America/La_Paz -4:32:36 - LMT 1890 # Oficial da União"...) in Brazil there are changes in the timezones, # effective today (00:00am at June 24, 2008) as follows: # -# a) The timezone UTC+5 is e[x]tinguished, with all the Acre state and the +# a) The timezone UTC+5 is extinguished, with all the Acre state and the # part of the Amazonas state that had this timezone now being put to the # timezone UTC+4 # b) The whole Pará state now is put at timezone UTC+3, instead of just @@ -1657,7 +1657,7 @@ Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S Rule Uruguay 1992 only - Oct 18 0:00 1:00 S Rule Uruguay 1993 only - Feb 28 0:00 0 - # From Eduardo Cota (2004-09-20): -# The uruguayan government has decreed a change in the local time.... +# The Uruguayan government has decreed a change in the local time.... # http://www.presidencia.gub.uy/decretos/2004091502.htm Rule Uruguay 2004 only - Sep 19 0:00 1:00 S # From Steffen Thorsen (2005-03-11): diff --git a/tz-link.htm b/tz-link.htm index 8321a7a..9a47d45 100644 --- a/tz-link.htm +++ b/tz-link.htm @@ -179,7 +179,7 @@ timezone information for all countries</a> displays tables of DST rules. Time Zones</a> lets you sort zone names and convert times.</li> <li><a href="http://permatime.com/">Permatime</a> generates and views links that refer to a particular point in time and can be displayed in -multiple timezones.</li> +multiple time zones.</li> <li><a href="http://www.zeitverschiebung.net/en/">Time Difference</a> calculates the current time difference between locations.</li> <li><a href="http://www.wx-now.com/">Weather Now</a> lists the weather too.</li> @@ -211,7 +211,7 @@ recommendations for the use of VTIMEZONE and <code><abbr>tz</abbr></code>.</li> <li>CalConnect's <a href="http://calconnect.org/tc-timezone.shtml">TIMEZONE Technical Committee</a> has developed a <a href="http://tools.ietf.org/html/draft-douglass-timezone-service-11">draft -timezone service protocol</a> along with a <a +time zone service protocol</a> along with a <a href="http://tools.ietf.org/html/draft-daboo-caldav-timezone-ref-01">draft extension</a> to the <a href="http://caldav.calconnect.org/">CalDAV calendar access protocol</a> to allow time zone information to be exchanged @@ -235,8 +235,7 @@ href="http://www.w3.org/2000/01/foo">schema</a> was sketched out.</li> </ul> <h2>Other <code><abbr>tz</abbr></code> compilers</h2> <ul> -<li><a href="http://sourceforge.net/projects/vzic/">Vzic iCalendar -Timezone Converter</a> describes a <a +<li><a href="http://sourceforge.net/projects/vzic/">Vzic</a> is a <a href="http://en.wikipedia.org/wiki/C_%28programming_language%29">C</a> program that compiles <code><abbr>tz</abbr></code> source into iCalendar-compatible VTIMEZONE files. @@ -378,7 +377,7 @@ implementations contain a copy of a 32-bit subset of a recent Go-specific format.</li> <li><a href="http://users.skynet.be/Peter.Verthez/projects/intclock/">International -clock (intclock)</a> is a multi-timezone clock for +clock (intclock)</a> is a clock that displays multiple time zones on <abbr>GNU</abbr>/Linux and similar systems. It is freely available under the <abbr>GPL</abbr>.</li> <li><a diff --git a/zic.8 b/zic.8 index bf84c25..923ce1d 100644 --- a/zic.8 +++ b/zic.8 @@ -529,7 +529,7 @@ but this changed to the last Sunday in October starting in 1996. 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 zone has been CET for standard time and CEST for daylight saving time. .SH NOTES For areas with more than two types of local time, -- 1.9.1

2 2

Portuguese time zones - Africa/Luanda
by Stephen Colebourne Aug. 11, 2014

Aug. 11, 2014

While playing with the data format, I had a look at Africa/Luanda. It currently says: Zone Africa/Luanda 0:52:56 - LMT 1892 0:52:04 - AOT 1911 May 26 # Angola Time 1:00 - WAT Wikipedia has interesting details on this: http://en.wikipedia.org/wiki/Time_in_Portugal "By the Decree of 26 May 1911, a reform was approved regarding standard time in Portugal and in its overseas Empire" "These time zones were adopted on 1 January 1912." With the Portuguese law linked: http://dre.pt/pdf1sdip/1911/05/12500/23132313.pdf I'd suggest that the data should be changed from 1911 May 26 to 1 January 1912, but I don't have much Portuguese language expertise to confirm this... The Africa file has no details on the 1892 change. Note that the Wikipedia page and law includes other countries as well. I send this because (a) currently it seems wrong and (b) it is evidence that some historic data can be found and should not be lost. Stephen

2 1

updated URL for info on Indiana time zone history
by Nathan Stratton Treadway Aug. 10, 2014

Aug. 10, 2014

I noticed that, in the northamerica file, the page pointed to by the "What time is it in Indiana?" link no longer exists. As far as I could tell the mccsc.edu web site no longer includes any Indiana-time-zone-related information, but I did find the original page in the Wayback Machine: https://web.archive.org/web/20120722002414/http://www.mccsc.edu/time.html (That copy seems to be the final capture in the archive before the page disappeared.) Nathan ---------------------------------------------------------------------------- Nathan Stratton Treadway - nathanst(a)ontko.com - Mid-Atlantic region Ray Ontko & Co. - Software consulting services - http://www.ontko.com/ GPG Key: http://www.ontko.com/~nathanst/gpg_key.txt ID: 1023D/ECFB6239 Key fingerprint = 6AD8 485E 20B9 5C71 231C 0C32 15F3 ADCD ECFB 6239

2 3

Historic data updates
by Lester Caine Aug. 10, 2014

Aug. 10, 2014

In light of the recent Russian corrections, any chance that my UK historic patch can be looked at again? That is if I can find it again :( -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk

1 0

Several minor patches
by Tim Parenti Aug. 10, 2014

Aug. 10, 2014

Attached are another round of patches, relative to 62060419e3b81752ee5c1bda546c0ff87d66ea3e. 0001 expands a bit commentary in tz-art.htm. 0002 adjusts some Rule lines, since zic has been able to handle 24:00. This changes timestamps for one minute in Asia/Dhaka at the end of 2009-12-31 to better match the contemporaneous commentary. The rest are minor, with 0003 fixing up spacing in the UNTIL fields of Zone and Zone continuation lines, and with 0004 and 0005 fixing up commentary for consistency. These can be compared at https://github.com/timparenti/tz-experimental/compare/eggert:master...timpa… -- Tim Parenti

2 1

Re: [tz] Correct time in Russia before 1927 or so
by Paul Eggert Aug. 8, 2014

Aug. 8, 2014

Thanks for the info. I installed the attached proposed patch into the experimental repository on Github; I hope it captures the data you reported.

1 0

Re: [tz] Correct time in Russia before 1927 or so
by Vladimir Karpinsky Aug. 7, 2014

Aug. 7, 2014

It looks like data taken from Milne 1899 are not correct enough for 1919. Data by Byalokoz E.L. are slightly different. I think they are reliable, because in 1919 he was a president of the Russian Committee of Standard Time. The difference may result from the new standard that was accepted in Russia on Jul 3, 1916. > From: Paul Eggert <eggert(a)cs.ucla.edu> > Date: Tue, 8 Jul 2014 19:23:04 -0700 > Subject: [PATCH] Correct time in Russia before 1927 or so. > > (Thanks to Vladimir Karpinsky for the Moscow corrections.) > Other corrections are taken from Milne 1899. > * asia (Asia/Tbilisi): Change LMT from 2:59:16 to 2:59:06. > (Asia/Tashkent): Change LMT from 4:37:12 to 4:37:11. > * europe (Europe/Helsinki): Change LMT from 1:39:52 to 1:39:49. > (Europe/Riga): Change LMT from 1:36:24 to 1:36:28. > (Europe/Moscow): Change LMT from 2:30:20 to 2:30:17. > Change 1916/9 time from 2:30:48 to 2:31:19. > (Asia/Yekaterinburg): Change LMT from 4:02:24 to 4:02:33. > (Asia/Irkutsk): Change LMT from 6:57:20 to 6:57:15. > (Asia/Vladivostok): Change LMT from 8:47:44 to 8:47:34. > * zone.tab (Europe/Moscow): Use Kilometer 0 point. > * NEWS: Document this. Byalokoz E.L. gives the following data for 1919, before time zones were established in Russia: Riga 1:36:34 Latvia Tbilisi (Tiflis) 2:59:11 Georgia Samara 3:20:20 Perm 3:45:05 Yekaterinburg 3:45:05 @Perm that was the center of province, Yekaterinburg became regional center in 1923 Samarkand 4:27:53 Uzbekistan Omsk 4:53:30 Krasnoyarsk 6:11:26 Irkutsk 6:57:05 Yakutsk 8:38:58 Vladivostok 8:47:31 (From the book by Byalokoz E.L. New Counting of Time in Russia since July 1, 1919. This was an official info of the Russian Comittee of Standard Time.) Sincerely, Vladimir Karpinsky

1 0

[PATCH] Minor spelling, accent, or English fixes.
by Paul Eggert Aug. 7, 2014

Aug. 7, 2014

--- africa | 2 +- asia | 8 ++++---- date.c | 2 +- europe | 6 +++--- southamerica | 2 +- zone.tab | 2 +- zone1970.tab | 2 +- 7 files changed, 12 insertions(+), 12 deletions(-) diff --git a/africa b/africa index 4ace7e9..339d6c4 100644 --- a/africa +++ b/africa @@ -180,7 +180,7 @@ Zone Africa/Lubumbashi 1:49:52 - LMT 1897 Nov 9 Zone Africa/Brazzaville 1:01:08 - LMT 1912 1:00 - WAT -# Côte D'Ivoire / Ivory Coast +# Côte d'Ivoire / Ivory Coast # Zone NAME GMTOFF RULES FORMAT [UNTIL] Zone Africa/Abidjan -0:16:08 - LMT 1912 0:00 - GMT diff --git a/asia b/asia index 6130e59..97b2030 100644 --- a/asia +++ b/asia @@ -356,7 +356,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # * The Republic of China instituted Beijing mean solar time effective # the official calendar book of 1914. # * The French Concession in Shanghai set up signal stations in -# French docks in the 1890s, controled by Xujiahui (Zikawei) +# French docks in the 1890s, controlled by Xujiahui (Zikawei) # Obervatory and set to local mean time. # * "From the end of the 19th century" it changed to UT+8. # * Chinese Customs (by then reduced to a tool of foreign powers) @@ -501,7 +501,7 @@ Rule PRC 1987 1991 - Apr Sun>=10 0:00 1:00 D # "The Working-Calendar for The Xinjiang Uygur Autonomous Region Government" # <http://www.sinkiang.gov.cn/service/ourworking/> (2014-04-22). # Unfortunately, we have no good records of time in Xinjiang before 1986. -# During the 20th century parts of Xinjiang were ruled by the Qing dyansty, +# During the 20th century parts of Xinjiang were ruled by the Qing dynasty, # the Republic of China, various warlords, the First and Second East Turkestan # Republics, the Soviet Union, the Kuomintang, and the People's Republic of # China, and tracking down all these organizations' timekeeping rules would be @@ -710,7 +710,7 @@ Zone Asia/Hong_Kong 7:36:42 - LMT 1904 Oct 30 # # The Summer Time this year is adopted from midnight Apr 15 until Sep 20 # midnight. To save (energy?) consumption, we're expanding Summer Time -# adption till Oct 31 midnight. +# adoption till Oct 31 midnight. # # The Central Weather Bureau website didn't mention that, however it can # be found from historical government announcement database. @@ -1589,7 +1589,7 @@ Zone Asia/Qyzylorda 4:21:52 - LMT 1924 May 2 5:00 - QYZT 1992 Jan 19 2:00 6:00 RussiaAsia QYZ%sT 2005 Mar 15 6:00 - QYZT -# Aqtobe (aka Aktobe, formerly Akt'ubinsk) +# Aqtobe (aka Aktobe, formerly Aktyubinsk) Zone Asia/Aqtobe 3:48:40 - LMT 1924 May 2 4:00 - AKTT 1930 Jun 21 # Aktyubinsk Time 5:00 - AKTT 1981 Apr 1 diff --git a/date.c b/date.c index a9ca67f..9a0b84c 100644 --- a/date.c +++ b/date.c @@ -12,7 +12,7 @@ * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANT[A]BILITY AND FITNESS FOR A PARTICULAR PURPOSE. + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #include "private.h" diff --git a/europe b/europe index 3ab6b0f..97b9f63 100644 --- a/europe +++ b/europe @@ -1259,7 +1259,7 @@ Zone Europe/Berlin 0:53:28 - LMT 1893 Apr # http://www.srf.ch/player/video?id=c012c029-03b7-4c2b-9164-aa5902cd58d3 # From Arthur David Olson (2012-03-03): -# Busingen and Zurich have shared clocks since 1970. +# Büsingen and Zurich have shared clocks since 1970. Link Europe/Zurich Europe/Busingen @@ -1538,7 +1538,7 @@ Link Europe/Rome Europe/San_Marino # institute daylight-saving time this spring, LETA reported. # Last February the three Baltic states decided not to turn back their # clocks one hour in the spring.... -# Minister of Economy Aigars Kalvitis noted that Latvia had too few +# Minister of Economy Aigars Kalvītis noted that Latvia had too few # daylight hours and thus decided to comply with a draft European # Commission directive that provides for instituting daylight-saving # time in EU countries between 2002 and 2006. The Latvian government @@ -3284,7 +3284,7 @@ Zone Europe/Zaporozhye 2:20:40 - LMT 1880 # ... # # ...the European time rules are...standardized since 1981, when -# most European coun[tr]ies started DST. Before that year, only +# most European countries started DST. Before that year, only # a few countries (UK, France, Italy) had DST, each according # to own national rules. In 1981, however, DST started on # 'Apr firstSun', and not on 'Mar lastSun' as in the following diff --git a/southamerica b/southamerica index de1f15e..1e5f5fc 100644 --- a/southamerica +++ b/southamerica @@ -1146,7 +1146,7 @@ Zone America/Rio_Branco -4:31:12 - LMT 1914 # # This is breaking news. There should be more information available later. -# From Arthur Daivd Olson (2010-03-06): +# From Arthur David Olson (2010-03-06): # Angel Chiang's message confirmed by Julio Pacheco; Julio provided a patch. # From Glenn Eychaner (2011-03-02): [geychaner(a)mac.com] diff --git a/zone.tab b/zone.tab index 92b9c98..4fe7527 100644 --- a/zone.tab +++ b/zone.tab @@ -37,7 +37,7 @@ 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 -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Adelie Land AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I AQ -720041+0023206 Antarctica/Troll Troll Station, Queen Maud Land AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) diff --git a/zone1970.tab b/zone1970.tab index c39380c..6188b61 100644 --- a/zone1970.tab +++ b/zone1970.tab @@ -44,7 +44,7 @@ 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 -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville Station, Adélie Land AQ -690022+0393524 Antarctica/Syowa Syowa Station, E Ongul I AQ -720041+0023206 Antarctica/Troll Troll Station, Queen Maud Land AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) -- 1.9.1

1 0

2014f and Russia
by Deborah Goldsmith Aug. 6, 2014

Aug. 6, 2014

Given the long lead time for deployment of TZ data in some cases, may I suggest that we expedite the release of the changes for Russia in 2014f, and defer any contentious changes to a subsequent release? Thank you, Deborah

4 7

[tz-announce] 2014f release of tz code and data available
by Paul Eggert Aug. 6, 2014

Aug. 6, 2014

The 2014f release of the tz code and data is available. It reflects the following changes, which were either circulated on the tz mailing list or are relatively minor technical or administrative changes: Changes affecting future time stamps Russia will subtract an hour from most of its time zones on 2014-10-26 at 02:00 local time. (Thanks to Alexander Krivenyshev.) There are a few exceptions: Magadan Oblast (Asia/Magadan) and Zabaykalsky Krai are subtracting two hours; conversely, Chukotka Autonomous Okrug (Asia/Anadyr), Kamchatka Krai (Asia/Kamchatka), Kemerovo Oblast (Asia/Novokuznetsk), and the Samara Oblast and the Udmurt Republic (Europe/Samara) are not changing their clocks. The changed zones are Europe/Kaliningrad, Europe/Moscow, Europe/Simferopol, Europe/Volgograd, Asia/Yekaterinburg, Asia/Omsk, Asia/Novosibirsk, Asia/Krasnoyarsk, Asia/Irkutsk, Asia/Yakutsk, Asia/Vladivostok, Asia/Khandyga, Asia/Sakhalin, and Asia/Ust-Nera; Asia/Magadan will have two hours subtracted; and Asia/Novokuznetsk's time zone abbreviation is affected, but not its UTC offset. Two zones are added: Asia/Chita (split from Asia/Yakutsk, and also with two hours subtracted) and Asia/Srednekolymsk (split from Asia/Magadan, but with only one hour subtracted). (Thanks to Tim Parenti for much of the above.) Changes affecting time zone abbreviations Australian eastern time zone abbreviations are now AEST/AEDT not EST, and similarly for the other Australian zones. That is, for eastern standard and daylight saving time the abbreviations are AEST and AEDT instead of the former EST for both; similarly, ACST/ACDT, ACWST/ACWDT, and AWST/AWDT are now used instead of the former CST, CWST, and WST. This change does not affect UTC offsets, only time zone abbreviations. (Thanks to Rich Tibbett and many others.) Asia/Novokuznetsk shifts from NOVT to KRAT (remaining on UTC+7) effective 2014-10-26 at 02:00 local time. The time zone abbreviation for Xinjiang Time (observed in Ürümqi) has been changed from URUT to XJT. (Thanks to Luther Ma.) Prefer MSK/MSD for Moscow time in Russia, even in other cities. Similarly, prefer EET/EEST for eastern European time in Russia. Change time zone abbreviations in (western) Samoa to use "ST" and "DT" suffixes, as this is more likely to match common practice. Prefix "W" to (western) Samoa time when its standard-time offset disagrees with that of American Samoa. America/Metlakatla now uses PST, not MeST, to abbreviate its time zone. Time zone abbreviations have been updated for Japan's two time zones used 1896-1937. JWST now stands for Western Standard Time, and JCST for Central Standard Time (formerly this was CJT). These abbreviations are now used for time in Korea, Taiwan, and Sakhalin while controlled by Japan. Changes affecting past time stamps China's five zones have been simplified to two, since the post-1970 differences in the other three seem to have been imaginary. The zones Asia/Harbin, Asia/Chongqing, and Asia/Kashgar have been removed; backwards-compatibility links still work, albeit with different behaviors for time stamps before May 1980. Asia/Urumqi's 1980 transition to UTC+8 has been removed, so that it is now at UTC+6 and not UTC+8. (Thanks to Luther Ma and to Alois Treindl; Treindl sent helpful translations of two papers by Guo Qingsheng.) Some zones have been turned into links, when they differed from existing zones only for older UTC offsets where the data were likely invented. These changes affect UTC offsets in pre-1970 time stamps only. This is similar to the change in release 2013e, except this time for western Africa. The affected zones are: Africa/Bamako, Africa/Banjul, Africa/Conakry, Africa/Dakar, Africa/Freetown, Africa/Lome, Africa/Nouakchott, Africa/Ouagadougou, Africa/Sao_Tome, and Atlantic/St_Helena. This also affects the backwards-compatibility link Africa/Timbuktu. (Thanks to Alan Barrett, Stephen Colebourne, Tim Parenti, and David Patte for reporting problems in earlier versions of this change.) Asia/Shanghai's pre-standard-time UT offset has been changed from 8:05:57 to 8:05:43, the location of Xujiahui Observatory. Its transition to standard time has been changed from 1928 to 1901. Asia/Taipei switched to JWST on 1896-01-01, then to JST on 1937-10-01, then to CST on 1945-09-21 at 01:00, and did not observe DST in 1945. In 1946 it observed DST from 05-15 through 09-30; in 1947 from 04-15 through 10-31; and in 1979 from 07-01 through 09-30. (Thanks to Yu-Cheng Chuang.) Asia/Riyadh's transition to standard time is now 1947-03-14, not 1950. Europe/Helsinki's 1942 fall-back transition was 10-04 at 01:00, not 10-03 at 00:00. (Thanks to Konstantin Hyppönen.) Pacific/Pago_Pago has been changed from UTC-11:30 to UTC-11 for the period from 1911 to 1950. Pacific/Chatham has been changed to New Zealand standard time plus 45 minutes for the period before 1957, reflecting a 1956 remark in the New Zealand parliament. Europe/Budapest has several pre-1946 corrections: in 1918 the transition out of DST was on 09-16, not 09-29; in 1919 it was on 11-24, not 09-15; in 1945 it was on 11-01, not 11-03; in 1941 the transition to DST was 04-08 not 04-06 at 02:00; and there was no DST in 1920. Africa/Accra is now assumed to have observed DST from 1920 through 1935. Time in Russia before 1927 or so has been corrected by a few seconds in the following zones: Europe/Moscow, Asia/Irkutsk, Asia/Tbilisi, Asia/Tashkent, Asia/Vladivostok, Asia/Yekaterinburg, Europe/Helsinki, and Europe/Riga. Also, Moscow's location has been changed to its Kilometer 0 point. (Thanks to Vladimir Karpinsky for the Moscow changes.) Changes affecting data format A new file 'zone1970.tab' supersedes 'zone.tab' in the installed data. The new file's extended format allows multiple country codes per zone. The older file is still installed but is deprecated; its format is not changing and it will still be distributed for a while, but new applications should use the new file. The new file format simplifies maintenance of obscure locations. To test this, it adds coverage for the Crozet Islands and the Scattered Islands. (Thanks to Tobias Conradi and Antoine Leca.) The file 'iso3166.tab' is planned to switch from ASCII to UTF-8. It is still ASCII now, but commentary about the switch has been added. The new file 'zone1970.tab' already uses UTF-8. Changes affecting code 'localtime', 'mktime', etc. now use much less stack space if ALL_STATE is defined. (Thanks to Elliott Hughes for reporting the problem.) 'zic' no longer mishandles input when ignoring case in locales that are not compatible with English, e.g., unibyte Turkish locales when compiled with HAVE_GETTEXT. Error diagnostics of 'zic' and 'yearistype' have been reworded so that they no longer use ASCII '-' as if it were a dash. 'zic' now rejects output file names that contain '.' or '..' components. (Thanks to Tim Parenti for reporting the problem.) 'zic -v' now warns about output file names that do not follow POSIX rules, or that contain a digit or '.'. (Thanks to Arthur David Olson for starting the ball rolling on this.) Some lint has been removed when using GCC_DEBUG_FLAGS with GCC 4.9.0. Changes affecting build procedure 'zic' no longer links in localtime.o and asctime.o, as they're not needed. (Thanks to John Cochran.) Changes affecting documentation and commentary The 'Theory' file documents legacy names, the longstanding exceptions to the POSIX-inspired file name rules. The 'zic' documentation clarifies the role of time types when interpreting dates. (Thanks to Arthur David Olson.) Documentation and commentary now prefer UTF-8 to US-ASCII, allowing the use of proper accents in foreign words and names. Code and data have not changed because of this. (Thanks to Garrett Wollman, Ian Abbott, and Guy Harris for helping to debug this.) Non-HTML documentation and commentary now use plain-text URLs instead of HTML insertions, and are more consistent about bracketing URLs when they are not already surrounded by white space. (Thanks to suggestions by Steffen Nurpmeso.) There is new commentary about Xujiahui Observatory, the five timezone project in China from 1918 to 1949, timekeeping in Japanese-occupied Shanghai, and Tibet Time in the 1950s. The sharp-eyed can spot the warlord Jin Shuren in the data. Commentary about the coverage of each Russian zone has been standardized. (Thanks to Tim Parenti). There is new commentary about contemporary timekeeping in Ethiopia. Obsolete comments about a 2007 proposal for DST in Kuwait has been removed. There is new commentary about time in Poland in 1919. Proper credit has been given to DST inventor George Vernon Hudson. Commentary about time in Metlakatla, AK and Resolute, NU has been improved, with a new source for the former. In zone.tab, Pacific/Easter no longer mentions Salas y Gómez, as it is uninhabited. Commentary about permanent Antarctic bases has been updated. Several typos have been corrected. (Thanks to Tim Parenti for contributing some of these fixes.) tz-link.htm now mentions the JavaScript libraries Moment Timezone, TimezoneJS.Date, Walltime-js, and Timezone. (Thanks to a heads-up from Matt Johnson.) Also, it mentions the Go 'latlong' package. (Thanks to a heads-up from Dirkjan Ochtman.) The files usno1988, usno1989, usno1989a, usno1995, usno1997, and usno1998 have been removed. These obsolescent US Naval Observatory entries were no longer helpful for maintenance. (Thanks to Tim Parenti for the suggestion.) Here are links to the release files: ftp://ftp.iana.org/tz/releases/tzcode2014f.tar.gz ftp://ftp.iana.org/tz/releases/tzdata2014f.tar.gz The files are also available via HTTP as follows: http://www.iana.org/time-zones/repository/releases/tzcode2014f.tar.gz http://www.iana.org/time-zones/repository/releases/tzdata2014f.tar.gz Each release file has a GPG signature, which can be retrieved by appending ".asc" to the above URLs. Copies of these signatures are appended to this message. As usual, links to the latest release files are here: http://www.iana.org/time-zones/repository/tzcode-latest.tar.gz http://www.iana.org/time-zones/repository/tzdata-latest.tar.gz ftp://ftp.iana.org/tz/tzcode-latest.tar.gz ftp://ftp.iana.org/tz/tzdata-latest.tar.gz This release corresponds to commit 17be956450ed23b20e7c9997e96350dba5b866ce dated Tue Aug 5 17:42:36 2014 -0700 and tagged '2014f' in the unofficial github repository at <https://github.com/eggert/tz>. Here are the GPG checksums for the release files: -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJT4XtOAAoJEO2X6Q5iqn400hwP+wZsP6vMtAn4tabWFOg5mlCF zpf8Xfte/ytIkHTjQYa0QFLlV7+4z9A0R2eHy2H/+fHXXw4sNite1ACJFQ6ppT9M ZqUWzPbF+f6Xzft2gqmPdTz+glTRRQequTewbGHXh3LvGHVFHfhhvRXqjn+tJ/he nOchcOusZPQiNJBzhlXd/bHHYgYjwcYnDnaWEESbY/cY3AIySP8TOA7ljzcznzLR 4HlO8ZnXo535pbHw7PfQTtZ6TNM0Kbr4OkS/eE5XnDBgkVPr2Gj7d/2knkcJgkO4 xHjQb1sO7obN6mOJGgbTur939oXw3Cle7oQzpeF5Dy6dwBMmBPJTa9b7AJTQ6OyO Kqx5bAw1sXN1nW1NFtlfnlGNl5NDcSrRvZG4ZhAmoju1ksi2C9D5aamyBYkEajhd d0oISeGNBjn3CkB/2ad5oh486iWMbxDcsXlPuGYUzkHan8qtlfHzSLd4AbNHrFDw 8Knw7QE0Hkmxz/fd85DEe4d23ds81dzkik3VTYh4d2TgNPwlcJyP/H6dwpsVjLui jn9i5AtdF8FAo4CsUKtyr7WDopiU6qlgRZvtcziDXUsO7KqPYtrXOI2Ly9zg5DCq hVmCRQgYCn94D2QswGSYdtfzsvUTszi3DPI2X2XqZB2Uu9zIQvq8LCFhgWC4PbkL 5ftWOb1UFwvmexq+3Z+8 =FlHy -----END PGP SIGNATURE----- -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJT4XtOAAoJEO2X6Q5iqn40+k8P/ijgRGw/ucOh9NYbzCFDbN68 tvA/B4KDjNzxWnUGJft2flofSJLiPgKGmMWyShIya72iksB5jUj76IeWqfFGZbin nwepX/RHFIKqMP8IqPa1DU2sEKC9per9wapdjSpwFk2/WMgiKk9lFNd9dxKV7Tuz M3Vn1tXjMjELbFNee//GXN26hEqFQ2z8uTn+gVq1aeDLFwr0EGs3615UNU0l0Nna Vm1w6tQzj2pVFgIIoH1HOEWcRlfbwQ+b7EjsQG8YBlUMYD+GPaISM7FLQ1R+3+VS nX4V0z60u+VHNNH6YIgBSFzJv4eJlovIn6GkjK2JuoPYMF5aVRqUEk75IWSLE2xl QeDYJIoO3gZkdyKvZLWPu8D4F3mieNaHX6BZawUJnh70dyM/w6SO5DAZpz/xR5RU km0bcMkK4bqs1W+EToSYB8hhFXDPfKtyNb7PEPBEUcOIgPGuxgyLTBhMIMgeNVZL zd1XWCvTpdLsYWUiRMqNirOj2tFy8Tu1vTzzinMe1BFqDKzWlNawvLQ1Oq8KmSJm B+yl1t6AXPH9HhrrR1yot/vmsnMPbnKYVt8Fk9MaSQ9mxuH9KtR/+0IjE9Z+i2zl Axn9+C/5SuJ2/TY1SJkdDibasiFI0HUUMWQui7PtOu/JVM9Lqf3jcdpEUmtrWRQU +PXmO3UhoBnhm9J5Y9a3 =QvEh -----END PGP SIGNATURE----- _______________________________________________ tz-announce mailing list tz-announce(a)iana.org https://mm.icann.org/mailman/listinfo/tz-announce

1 0

2011-09-17 reported Siberia bug
by Tobias Conradi Aug. 5, 2014

Aug. 5, 2014

http://article.gmane.org/gmane.comp.time.tz/4872/match=siberia Still open. -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com

2 3

Large scale changes proposed in 2014f
by Stephen Colebourne Aug. 5, 2014

Aug. 5, 2014

I believe that the changes currently proposed are far far too widespread and damaging. I have taken the latest in the GitHub repo and expanded them out into actual resolved results. The differences between 2014e and 2014f-proposed can be seen here: https://github.com/jodastephen/tzdiff/commit/c812da9e12bd6f8aa52fa2dd758e23… (other version differences available here: https://github.com/jodastephen/tzdiff/commits/proposed-2014f) As can be seen from the first link, the changes proposed are very widespread. they include - Africa/Accra gains DST between 1920 and 1935 - Africa/Freetown loses its entire history of DST - Africa/Kampala has very different DST history - Africa/Dar_es_Salaam has entirely different history before 1961 - Africa/Djibouti gains history before 1960 - Africa/Addis_Ababa has completely different history before 1960 - Africa/Asmara has completely different history before 1960 - Africa/Conakry loses history before 1960 - Africa/Banjul loses history before 1964 - Africa/Maseru gains DST history - Africa/Mbabane gains DST history - Africa/Mogadishu gains completely different DST history and many others with more minor changes. I'd also note that Ho_Chi_Minh, Kashgar, Saigon, Vientiane and Phnom_Penh lose their entire history The changes to Asia/Qatar and Asia/Kuwait look suspect. Asia/Urumqi loses its entire history. Indian/Antananarivo, Comoro and Mayotte get entirely different DST history. Pacific/Midway, Pago_Pago, Saipan, Samoa get entirely different DST history. The above is an attempt to summarise some but not all of the changes. I am far from convinced that the scale of the proposed changes (far bigger than even 2013e) have been anywhere near justified. Is there consensus on the list that all of these changes are better than what went before? Stephen On 16 July 2014 06:40, Paul Eggert <eggert(a)cs.ucla.edu> wrote: > Paul Eggert wrote: >> >> Alan Barrett wrote: >>> >>> To the best of my knowledge, most other African countries that share the >>> same UTC offset do not use the abbreviation "SAST" >> >> >> Thanks for catching this; this was indeed an error in the merge, and >> I'll prepare a patch shortly that reverts to the previous behavior here >> as well. > > > By "most other African countries" I expect you meant the same set of > countries that use "CAT" rather than "SAST" in Release 2014e. > > Anyway, the revised patch turned into more research than I expected, but I > finally came up with the attached proposal. This patch fixes the problem > you noted, along with the other specific problems noted, though it does > still turn some zones into links when there's no good evidence for the > zones' differences. > > I hope I correctly puzzled out Google Translate's mangling of Hungarian for > the fixes to Hungarian daylight saving time rules in 1918-1945. Oross's work > has facsimiles of the original material! If only our other sources were as > meticulous....

13 27

Corroborating material
by Lester Caine Aug. 4, 2014

Aug. 4, 2014

I'm going to try and get a bit of time in on http://timedb.co.uk/ and I'd appreciate any material people have relating to historic timezone data ... -- Lester Caine - G8HFL ----------------------------- Contact - http://lsces.co.uk/wiki/?page=contact L.S.Caine Electronic Services - http://lsces.co.uk EnquirySolve - http://enquirysolve.com/ Model Engineers Digital Workshop - http://medw.co.uk Rainbow Digital Media - http://rainbowdigitalmedia.co.uk

1 0

Fwd: Proposal to rename zone.tab to region.tab
by Tobias Conradi July 31, 2014

July 31, 2014

Retry, this didn't go through 2013-09-15, due to blocking by the time zone mailing list maintainer. ---------- Forwarded message ---------- From: Tobias Conradi <mail.2012(a)tobiasconradi.com> Date: Sun, Sep 15, 2013 at 12:29 PM Subject: Proposal to rename zone.tab to region.tab To: "tz(a)iana.org mailing list" <tz(a)iana.org> Proposal to rename ftp://ftp.iana.org/tz/data/zone.tab to ftp://ftp.iana.org/tz/data/region.tab Reason: ftp://ftp.iana.org/tz/code/Theory says ----- Scope of the tz database ----- ... To represent this data, the world is partitioned into regions .... For each such region, the database records all known clock transitions, and labels the region ...... Uniquely identify every national region .... Indicate to humans as to where that region is. .... is the name of a specific location within that region. ..... Uninhabited regions like ..... If all the clocks in a region have agreed since 1970, .... even if subregions' clocks disagreed before 1970. ...... Use cities or small islands, not countries or regions, [! other meaning] ..... The file `zone.tab' lists the geographical locations used to name time zone rule files. It is intended to be an exhaustive list of names for geographic regions as described above. -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com

4 6

Proposal: Use Git and Github better
by Matt Johnson July 31, 2014

July 31, 2014

I think it's great that we're using Git and Github as the experimental / unofficial repository at https://github.com/eggert/tz. It's much easier to track change history looking through the commit log and see the changes than by reading through emails with patch attachments. However, we're not currently taking advantage of all that this environment has to offer. -- Item 1 -- We should be making better use of branches. We currently have a single "master" branch that everything gets committed to. This is problematic, because it doesn't separate things that are certain to be released from things that are proposed changes. For example, the recent time.tab file, and the other large-scale proposed changes that are currently being debated, could have been created on feature branches. This would have given the tz list members a place to look at the proposed changes and make additional suggestions (via pull requests) before things are finalized. As it sits today, since everything is in master, if the proposal is ultimately defeated then new commits will have to be made to master to revert these changes. The danger comes if, say we needed to issue an emergency release sometime in between. Since master isn't in a state of positive agreement, then one would have to branch from an earlier point in history to build a hotfix release, then merge that hotfix back to master later. It's much easier if we can just trust that master always consists of things that are certain to be released. See also: https://www.atlassian.com/git/workflows#!workflow-feature-branch http://www.git-scm.com/book/en/Git-Branching-Basic-Branching-and-Merging -- Item 2 -- I think that we should all make better use of forking and pull-requests for submitting proposed changes. Instead of submitting a patch file to the mailing list, one should fork the GitHub repo, make their changes, then create a pull request. This allows for place for discussion on proposals where the code can be referenced much easier. It also ensures that the author of each and every change is tracked in the commit log. And finally, it makes it much clearer which proposals were adopted and which were not. Presently, looking through the mailing list archives, it's quite difficult to tell if any given patch was actually applied or not. -- Item 3 -- We should decide how the GitHub issue tracker fits in to the ecosystem. I see that there have been a few issues reported to via the issue tracker in the past, but most things have come through the mailing list. If we adopt the conventions used by other modern projects, then we should be reporting bugs through the issue tracker so their history can be more easily found. Another benefit is that you can reference issue numbers in commits, and you can reference commits in the comments of an issue. This linking makes it quite easy to find the code or data that was changed in response to an issue. The mailing list should probably be used for extended discussion, rather than as a place to report issues. Though, there may be some blend of both, I personally think that an issue tracker is much more palatable than a mailing list for many of these kinds of things. There should probably be some guidance document on the iana tz page about what goes where. -- Item 4 -- While Paul Eggert is the tz maintainer, and I appreciate his efforts greatly, I personally don't feel that it's appropriate for the github repo to be in his personal "eggert" account. There should instead be a common "organizational account" for the project, such as github.com/tzdb or similar. ("iana" is taken, but appears to be unused or abandonded. Someone may want to inquire about obtaining it, as "github.com/iana/tz" would be quite appropriate IMHO). Though Paul would be the administrator of this account, his own personal account would no longer be authoritative. That also ties back to the idea of pull-requests. Since Paul makes the majority of changes, he would first make them in his own account, and then send a pull-request to the main account. Then a link could be sent to the mailing list for discussion on the pull request before it was merged in. As a side note - I've found that several third-party projects are linking to the unofficial sources using git submodules. While this isn't officially sanctioned, it would be much better if they could link to iana/tz instead of eggert/tz. -- Item 5 -- While code and data often go hand-in-hand, there are quite a lot of projects these days that only rely on the tz data. There are also a lot of releases of code changes that don't require data changes. Having both code and data in a single project seems rather inefficient. I propose that they be split back to separate projects, and maintained in separate github repos (tzdata / tzcode). Also, consider also that perhaps there are too many merged projects just within the code. For example, tzselect, zic, zdump, etc. might be broken out for better visibility of changes and for clarity of dependent files. I look forward to feedback on these items. I'm sure not all will be in agreement, but I think it's important that we look forward to new and better ways to manage this project - rather than just sticking with the ways of the past. -Matt

7 6

Canada/East-Saskatchewan
by Eric Muller July 31, 2014

July 31, 2014

The file backward contains those two links: Link America/Regina Canada/East-Saskatchewan Link America/Regina Canada/Saskatchewan If I am not mistaken, Saskatchewan can be divided in four areas: - the area around Swift Current, using the rule America/Swift_Current - an area to the west, around Lloydminster, using the rule America/Edmonton - an area to the east, around Denare Beach and Creighton, using the rule America/Winnipeg - the rest of the province, using the rule America/Regina I wonder if Canada/East-Saskatchewan was meant for the area to the east, and should therefore be linked to America/Winnipeg instead? Thanks, Eric.

3 2

Some typo fixes
by Tim Parenti July 31, 2014

July 31, 2014

A few typo fixes attached, along with some fuller sources in tz-art.htm. -- Tim Parenti

2 1

Updating the Efele maps: which names?
by Eric Muller July 27, 2014

July 27, 2014

I am looking at updating the Efele maps (http://efele.net/maps/tz/) primarily to deal with the changes in Russia, and more generally make sure that the maps are in sync with the current/next release of TZ. TZ provides a bunch of zone names, either via a Zone entry or via a Link entry. I am taking this opportunity to make sure that all these names are accounted for, in one of three ways: - names that do not belong to the maps (e.g. Etc/UTC) - names that should have a corresponding area in the maps - names that are aliases for other names I elected to retain the current per-country separations, as I believe it is more appropriate for maps, and more generally to retain the finest granularity possible. Some users may want to merge areas that follow the sames rules, but may have different definition of same rules (e.g. some may want to fold what is not different since 1970, others may want to fold what is not different since last year; some may ignore the FORMAT, some may not), and the finest granularity accommodates the largest number of uses. Here is what I came up with. All the names of TZ are supposed to be present somewhere. Comments welcome. Thanks, Eric. These names will not appear in my maps: --- CET CST6CDT EET EST EST5EDT Etc/GMT Etc/GMT0 Etc/GMT-0 Etc/Greenwich GMT GMT+0 GMT0 GMT-0 Greenwich Etc/GMT+1 Etc/GMT+10 Etc/GMT+11 Etc/GMT+12 Etc/GMT+2 Etc/GMT+3 Etc/GMT+4 Etc/GMT+5 Etc/GMT+6 Etc/GMT+7 Etc/GMT+8 Etc/GMT+9 Etc/GMT-1 Etc/GMT-10 Etc/GMT-11 Etc/GMT-12 Etc/GMT-13 Etc/GMT-14 Etc/GMT-2 Etc/GMT-3 Etc/GMT-4 Etc/GMT-5 Etc/GMT-6 Etc/GMT-7 Etc/GMT-8 Etc/GMT-9 Etc/UCT UCT Etc/UTC Etc/Universal Etc/Zulu Universal UTC Zulu HST MET MST MST7MDT PST8PDT WET ---- Each line below will be a separate area, labelled with the first name in the line. The other names are considered aliases. As before, there will also be areas labeled "uninhabited" or "unknown", and Antarctica will be points rather than areas. ---- Africa/Abidjan Africa/Accra Africa/Addis_Ababa Africa/Algiers Africa/Asmara Africa/Asmera Africa/Bamako Africa/Timbuktu Africa/Bangui Africa/Banjul Africa/Bissau Africa/Blantyre Africa/Brazzaville Africa/Bujumbura Africa/Cairo Egypt Africa/Casablanca Africa/Ceuta Africa/Conakry Africa/Dakar Africa/Dar_es_Salaam Africa/Djibouti Africa/Douala Africa/El_Aaiun Africa/Freetown Africa/Gaborone Africa/Harare Africa/Johannesburg Africa/Juba Africa/Kampala Africa/Khartoum Africa/Kigali Africa/Kinshasa Africa/Lagos Africa/Libreville Africa/Lome Africa/Luanda Africa/Lubumbashi Africa/Lusaka Africa/Malabo Africa/Maputo Africa/Maseru Africa/Mbabane Africa/Mogadishu Africa/Monrovia Africa/Nairobi Africa/Ndjamena Africa/Niamey Africa/Nouakchott Africa/Ouagadougou Africa/Porto-Novo Africa/Sao_Tome Africa/Tripoli Libya Africa/Tunis Africa/Windhoek America/Adak US/Aleutian America/Atka America/Anchorage US/Alaska America/Anguilla America/Antigua America/Araguaina America/Argentina/Buenos_Aires America/Buenos_Aires America/Argentina/Catamarca America/Catamarca America/Argentina/ComodRivadavia America/Argentina/Cordoba America/Cordoba America/Rosario America/Argentina/Jujuy America/Jujuy America/Argentina/La_Rioja America/Argentina/Mendoza America/Mendoza America/Argentina/Rio_Gallegos America/Argentina/Salta America/Argentina/San_Juan America/Argentina/San_Luis America/Argentina/Tucuman America/Argentina/Ushuaia America/Aruba America/Asuncion America/Atikokan America/Bahia America/Bahia_Banderas America/Barbados America/Belem America/Belize America/Blanc-Sablon America/Boa_Vista America/Bogota America/Boise America/Cambridge_Bay America/Campo_Grande America/Cancun America/Caracas America/Cayenne America/Cayman America/Chicago US/Central America/Chihuahua America/Coral_Harbour America/Costa_Rica America/Creston America/Cuiaba America/Curacao America/Danmarkshavn America/Dawson America/Dawson_Creek America/Denver Navajo US/Mountain America/Shiprock America/Detroit US/Michigan America/Dominica America/Edmonton Canada/Mountain America/Eirunepe America/El_Salvador America/Fortaleza America/Glace_Bay America/Godthab America/Goose_Bay America/Grand_Turk America/Grenada America/Guadeloupe America/Guatemala America/Guayaquil America/Guyana America/Halifax Canada/Atlantic America/Havana Cuba America/Hermosillo America/Indiana/Indianapolis US/East-Indiana America/Fort_Wayne America/Indianapolis America/Indiana/Knox US/Indiana-Starke America/Knox_IN America/Indiana/Marengo America/Indiana/Petersburg America/Indiana/Tell_City America/Indiana/Vevay America/Indiana/Vincennes America/Indiana/Winamac America/Inuvik America/Iqaluit America/Jamaica Jamaica America/Juneau America/Kentucky/Louisville America/Louisville America/Kentucky/Monticello America/Kralendijk America/La_Paz America/Lima America/Los_Angeles US/Pacific US/Pacific-New America/Lower_Princes America/Maceio America/Managua America/Manaus Brazil/West America/Marigot America/Martinique America/Matamoros America/Mazatlan Mexico/BajaSur America/Menominee America/Merida America/Metlakatla America/Mexico_City Mexico/General America/Miquelon America/Moncton America/Monterrey America/Montevideo America/Montreal America/Montserrat America/Nassau America/New_York US/Eastern America/Nipigon America/Nome America/Noronha Brazil/DeNoronha America/North_Dakota/Beulah America/North_Dakota/Center America/North_Dakota/New_Salem America/Ojinaga America/Panama America/Pangnirtung America/Paramaribo America/Phoenix US/Arizona America/Port-au-Prince America/Port_of_Spain America/Porto_Velho America/Puerto_Rico America/Rainy_River America/Rankin_Inlet America/Recife America/Regina Canada/East-Saskatchewan Canada/Saskatchewan America/Resolute America/Rio_Branco Brazil/Acre America/Porto_Acre America/Santa_Isabel America/Santarem America/Santiago Chile/Continental America/Santo_Domingo America/Sao_Paulo Brazil/East America/Scoresbysund America/Sitka America/St_Barthelemy America/St_Johns Canada/Newfoundland America/St_Kitts America/St_Lucia America/St_Thomas America/St_Vincent America/Swift_Current America/Tegucigalpa America/Thule America/Thunder_Bay America/Tijuana Mexico/BajaNorte America/Ensenada America/Toronto Canada/Eastern America/Tortola America/Vancouver Canada/Pacific America/Virgin America/Whitehorse Canada/Yukon America/Winnipeg Canada/Central America/Yakutat America/Yellowknife Antarctica/Casey Antarctica/Davis Antarctica/DumontDUrville Antarctica/Macquarie Antarctica/Mawson Antarctica/McMurdo Antarctica/Palmer Antarctica/Rothera Antarctica/South_Pole Antarctica/Syowa Antarctica/Troll Antarctica/Vostok Arctic/Longyearbyen Asia/Aden Asia/Almaty Asia/Amman Asia/Anadyr Asia/Aqtau Asia/Aqtobe Asia/Ashgabat Asia/Ashkhabad Asia/Baghdad Asia/Bahrain Asia/Baku Asia/Bangkok Asia/Beirut Asia/Bishkek Asia/Brunei Asia/Chita Asia/Choibalsan Asia/Chongqing Asia/Chungking Asia/Colombo Asia/Damascus Asia/Dhaka Asia/Dacca Asia/Dili Asia/Dubai Asia/Dushanbe Asia/Gaza Asia/Harbin Asia/Hebron Asia/Ho_Chi_Minh Asia/Hong_Kong HongKong Asia/Hovd Asia/Irkutsk Asia/Jakarta Asia/Jayapura Asia/Jerusalem Asia/Tel_Aviv Israel Asia/Kabul Asia/Kamchatka Asia/Karachi Asia/Kashgar Asia/Kathmandu Asia/Katmandu Asia/Khandyga Asia/Kolkata Asia/Calcutta Asia/Krasnoyarsk Asia/Kuala_Lumpur Asia/Kuching Asia/Kuwait Asia/Macau Asia/Macao Asia/Magadan Asia/Makassar Asia/Ujung_Pandang Asia/Manila Asia/Muscat Asia/Nicosia Europe/Nicosia Asia/Novokuznetsk Asia/Novosibirsk Asia/Omsk Asia/Oral Asia/Phnom_Penh Asia/Pontianak Asia/Pyongyang Asia/Qatar Asia/Qyzylorda Asia/Rangoon Asia/Riyadh Asia/Saigon Asia/Sakhalin Asia/Samarkand Asia/Seoul ROK Asia/Shanghai PRC Asia/Singapore Singapore Asia/Srednekolymsk Asia/Taipei ROC Asia/Tashkent Asia/Tbilisi Asia/Tehran Iran Asia/Thimphu Asia/Thimbu Asia/Tokyo Japan Asia/Ulaanbaatar Asia/Ulan_Bator Asia/Urumqi Asia/Ust-Nera Asia/Vientiane Asia/Vladivostok Asia/Yakutsk Asia/Yekaterinburg Asia/Yerevan Atlantic/Azores Atlantic/Bermuda Atlantic/Canary Atlantic/Cape_Verde Atlantic/Faroe Atlantic/Faeroe Atlantic/Jan_Mayen Atlantic/Madeira Atlantic/Reykjavik Iceland Atlantic/South_Georgia Atlantic/St_Helena Atlantic/Stanley Australia/Adelaide Australia/South Australia/Brisbane Australia/Queensland Australia/Broken_Hill Australia/Yancowinna Australia/Currie Australia/Darwin Australia/North Australia/Eucla Australia/Hobart Australia/Tasmania Australia/Lindeman Australia/Lord_Howe Australia/LHI Australia/Melbourne Australia/Victoria Australia/Perth Australia/West Australia/Sydney Australia/ACT Australia/Canberra Australia/NSW Europe/Amsterdam Europe/Andorra Europe/Athens Europe/Belgrade Europe/Berlin Europe/Bratislava Europe/Brussels Europe/Bucharest Europe/Budapest Europe/Busingen Europe/Chisinau Europe/Tiraspol Europe/Copenhagen Europe/Dublin Eire Europe/Gibraltar Europe/Guernsey Europe/Helsinki Europe/Isle_of_Man Europe/Istanbul Turkey Asia/Istanbul Europe/Jersey Europe/Kaliningrad Europe/Kiev Europe/Lisbon Portugal Europe/Ljubljana Europe/London GB GB-Eire Europe/Belfast Europe/Luxembourg Europe/Madrid Europe/Malta Europe/Mariehamn Europe/Minsk Europe/Monaco Europe/Moscow W-SU Europe/Oslo Europe/Paris Europe/Podgorica Europe/Prague Europe/Riga Europe/Rome Europe/Samara Europe/San_Marino Europe/Sarajevo Europe/Simferopol Europe/Skopje Europe/Sofia Europe/Stockholm Europe/Tallinn Europe/Tirane Europe/Uzhgorod Europe/Vaduz Europe/Vatican Europe/Vienna Europe/Vilnius Europe/Volgograd Europe/Warsaw Poland Europe/Zagreb Europe/Zaporozhye Europe/Zurich Indian/Antananarivo Indian/Chagos Indian/Christmas Indian/Cocos Indian/Comoro Indian/Kerguelen Indian/Mahe Indian/Maldives Indian/Mauritius Indian/Mayotte Indian/Reunion Pacific/Apia Pacific/Auckland NZ Pacific/Chatham NZ-CHAT Pacific/Chuuk Pacific/Truk Pacific/Easter Chile/EasterIsland Pacific/Efate Pacific/Enderbury Pacific/Fakaofo Pacific/Fiji Pacific/Funafuti Pacific/Galapagos Pacific/Gambier Pacific/Guadalcanal Pacific/Guam Pacific/Honolulu US/Hawaii Pacific/Johnston Pacific/Kiritimati Pacific/Kosrae Pacific/Kwajalein Kwajalein Pacific/Majuro Pacific/Marquesas Pacific/Midway Pacific/Nauru Pacific/Niue Pacific/Norfolk Pacific/Noumea Pacific/Pago_Pago US/Samoa Pacific/Palau Pacific/Pitcairn Pacific/Pohnpei Pacific/Ponape Pacific/Port_Moresby Pacific/Rarotonga Pacific/Saipan Pacific/Samoa Pacific/Tahiti Pacific/Tarawa Pacific/Tongatapu Pacific/Wake Pacific/Wallis Pacific/Yap ----

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