[PROPOSED 1/2] Additional sourcing for Crimea 2014 switch
From: Tim Parenti <tim@timtimeonline.com> Reference from previous discussion: https://mm.icann.org/pipermail/tz/2019-July/028260.html --- europe | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/europe b/europe index c3a3cc4..956f670 100644 --- a/europe +++ b/europe @@ -2615,10 +2615,14 @@ Zone Europe/Simferopol 2:16:24 - LMT 1880 # From Alexander Krivenyshev (2014-03-17): # time change at 2:00 (2am) on March 30, 2014 # https://vz.ru/news/2014/3/17/677464.html -# From Paul Eggert (2014-03-30): -# Simferopol and Sevastopol reportedly changed their central town clocks -# late the previous day, but this appears to have been ceremonial -# and the discrepancies are small enough to not worry about. +# From Tim Parenti (2022-07-01), per Paul Eggert (2014-03-30): +# The clocks at the railway station in Simferopol were put forward from 22:00 +# to 24:00 the previous day in a "symbolic ceremony"; however, per +# contemporaneous news reports, "ordinary Crimeans [made] the daylight savings +# time switch at 2am" on Sunday. +# https://www.business-standard.com/article/pti-stories/crimea-to-set-clocks-t... +# https://www.reuters.com/article/us-ukraine-crisis-crimea-time/crimea-switche... +# https://www.bbc.com/news/av/world-europe-26806583 2:00 EU EE%sT 2014 Mar 30 2:00 4:00 - MSK 2014 Oct 26 2:00s 3:00 - MSK -- 2.37.2
* backward: New backward-compatibility links for the moved zones. * backzone (Europe/Uzhgorod, Europe/Zaporozhye): Move zones here ... * europe: ... from here. * zone.tab, zone1970.tab (Europe/Uzhgorod, Europe/Zaporozhye): Remove. --- NEWS | 6 ++++++ backward | 2 ++ backzone | 38 ++++++++++++++++++++++++++++++++++++++ europe | 42 ------------------------------------------ zone.tab | 2 -- zone1970.tab | 2 -- 6 files changed, 46 insertions(+), 46 deletions(-) diff --git a/NEWS b/NEWS index c4abb32..126822e 100644 --- a/NEWS +++ b/NEWS @@ -30,6 +30,7 @@ Release 2022b - 2022-08-10 15:38:32 -0700 Chile's DST is delayed by a week in September 2022. Iran no longer observes DST after 2022. Rename Europe/Kiev to Europe/Kyiv. + Simplify three Ukraine zones into one. New zic -R option Vanguard form now uses %z. Finish moving duplicate-since-1970 zones to 'backzone'. @@ -46,6 +47,11 @@ Release 2022b - 2022-08-10 15:38:32 -0700 Changes to past timestamps + Simplify three Ukraine zones to one, since the post-1970 + differences seem to have been imaginary. Move Europe/Uzhgorod and + Europe/Zaporozhye to 'backzone'; backward-compatibility links + still work, albeit with different timestamps before October 1991. + Finish moving to 'backzone' the location-based zones whose timestamps since 1970 are duplicates; adjust links accordingly. This change ordinarily affects only pre-1970 timestamps, and with diff --git a/backward b/backward index e162eeb..14e4b14 100644 --- a/backward +++ b/backward @@ -90,6 +90,8 @@ Link Etc/UTC Etc/UCT Link Europe/London Europe/Belfast Link Europe/Kyiv Europe/Kiev Link Europe/Chisinau Europe/Tiraspol +Link Europe/Kyiv Europe/Uzhgorod +Link Europe/Kyiv Europe/Zaporozhye Link Europe/London GB Link Europe/London GB-Eire Link Etc/GMT GMT+0 diff --git a/backzone b/backzone index c2448a8..929031f 100644 --- a/backzone +++ b/backzone @@ -1480,6 +1480,26 @@ Zone Europe/Tiraspol 1:58:32 - LMT 1880 2:00 Russia EE%sT 1992 Jan 19 2:00 3:00 Russia MSK/MSD +# Ukraine +# +# Although Shanks & Pottenger say Transcarpathia used CET 1990/1991, +# this unreliable source contradicts contemporaneous government resolutions +# so for now this dubious zone is in 'backzone'. +# "Uzhhorod" is the transliteration of the Rusyn/Ukrainian pronunciation, but +# "Uzhgorod" was a common English spelling when this dubious zone was +# added to TZDB in 1999. +Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct + 1:00 - CET 1940 + 1:00 C-Eur CE%sT 1944 Oct + 1:00 1:00 CEST 1944 Oct 26 + 1:00 - CET 1945 Jun 29 + 3:00 Russia MSK/MSD 1990 + 3:00 - MSK 1990 Jul 1 2:00 + 1:00 - CET 1991 Mar 31 3:00 + 2:00 - EET 1992 Mar 20 + 2:00 C-Eur EE%sT 1996 May 13 + 2:00 EU EE%sT + # Liechtenstein # From Paul Eggert (2022-07-21): @@ -1502,6 +1522,24 @@ Zone Europe/Zagreb 1:03:52 - LMT 1884 1:00 - CET 1982 Nov 27 1:00 EU CE%sT +# Ukraine + +# Although Shanks & Pottenger say Zaporizhzhia and eastern Lugansk +# observed DST 1990/1991, this unreliable source contradicts contemporaneous +# government resolutions so for now this dubious zone is in 'backzone'. +# "Zaporizhzhia" is the transliteration of the Ukrainian name, but +# "Zaporozhye" was a common English spelling when this dubious zone was +# added to TZDB in 1999. +Zone Europe/Zaporozhye 2:20:40 - LMT 1880 + 2:20 - +0220 1924 May 2 + 2:00 - EET 1930 Jun 21 + 3:00 - MSK 1941 Aug 25 + 1:00 C-Eur CE%sT 1943 Oct 25 + 3:00 Russia MSK/MSD 1991 Mar 31 2:00 + 2:00 E-Eur EE%sT 1992 Mar 20 + 2:00 C-Eur EE%sT 1996 May 13 + 2:00 EU EE%sT + # Madagascar Zone Indian/Antananarivo 3:10:04 - LMT 1911 Jul 3:00 - EAT 1954 Feb 27 23:00s diff --git a/europe b/europe index 956f670..8db0130 100644 --- a/europe +++ b/europe @@ -3826,21 +3826,7 @@ Link Europe/Istanbul Asia/Istanbul # Istanbul is in both continents. # * Ukrainian Government's Resolution of 20.03.1992, No. 139. # http://www.uazakon.com/documents/date_8u/pg_grcasa.htm -# From Paul Eggert (2022-04-12): -# As is usual in tzdb, Ukrainian zones use the most common English spellings. -# In particular, tzdb's name Europe/Kyiv uses the most common spelling in -# English for Ukraine's capital. Although tzdb's former name was Europe/Kiev, -# "Kyiv" is now more common due to widespread reporting of the current conflict. -# Conversely, tzdb continues to use the names Europe/Uzhgorod and -# Europe/Zaporozhye; this is similar to tzdb's use of Europe/Prague, which is -# certainly wrong as a transliteration of the Czech "Praha". -# English-language spelling of Ukrainian names is in flux, and -# some day "Uzhhorod" or "Zaporizhzhia" may become substantially more -# common in English; in the meantime, do not change these -# English spellings as that means less disruption for our users. - # Zone NAME STDOFF RULES FORMAT [UNTIL] -# This represents most of Ukraine. See above for the spelling of "Kyiv". Zone Europe/Kyiv 2:02:04 - LMT 1880 2:02:04 - KMT 1924 May 2 # Kyiv Mean Time 2:00 - EET 1930 Jun 21 @@ -3850,34 +3836,6 @@ Zone Europe/Kyiv 2:02:04 - LMT 1880 2:00 1:00 EEST 1991 Sep 29 3:00 2:00 C-Eur EE%sT 1996 May 13 2:00 EU EE%sT -# Transcarpathia used CET 1990/1991. -# "Uzhhorod" is the transliteration of the Rusyn/Ukrainian pronunciation, but -# "Uzhgorod" is more common in English. -Zone Europe/Uzhgorod 1:29:12 - LMT 1890 Oct - 1:00 - CET 1940 - 1:00 C-Eur CE%sT 1944 Oct - 1:00 1:00 CEST 1944 Oct 26 - 1:00 - CET 1945 Jun 29 - 3:00 Russia MSK/MSD 1990 - 3:00 - MSK 1990 Jul 1 2:00 - 1:00 - CET 1991 Mar 31 3:00 - 2:00 - EET 1992 Mar 20 - 2:00 C-Eur EE%sT 1996 May 13 - 2:00 EU EE%sT -# Zaporozh'ye and eastern Lugansk oblasts observed DST 1990/1991. -# "Zaporizhzhia" is the transliteration of the Ukrainian name, but -# "Zaporozh'ye" is more common in English. Use the common English -# spelling, except omit the apostrophe as it is not allowed in -# portable Posix file names. -Zone Europe/Zaporozhye 2:20:40 - LMT 1880 - 2:20 - +0220 1924 May 2 - 2:00 - EET 1930 Jun 21 - 3:00 - MSK 1941 Aug 25 - 1:00 C-Eur CE%sT 1943 Oct 25 - 3:00 Russia MSK/MSD 1991 Mar 31 2:00 - 2:00 E-Eur EE%sT 1992 Mar 20 - 2:00 C-Eur EE%sT 1996 May 13 - 2:00 EU EE%sT # Vatican City # See Europe/Rome. diff --git a/zone.tab b/zone.tab index 1f73dda..4904028 100644 --- a/zone.tab +++ b/zone.tab @@ -401,8 +401,6 @@ TV -0831+17913 Pacific/Funafuti TW +2503+12130 Asia/Taipei TZ -0648+03917 Africa/Dar_es_Salaam UA +5026+03031 Europe/Kyiv Ukraine (most areas) -UA +4837+02218 Europe/Uzhgorod Transcarpathia -UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk UG +0019+03225 Africa/Kampala UM +2813-17722 Pacific/Midway Midway Islands UM +1917+16637 Pacific/Wake Wake Island diff --git a/zone1970.tab b/zone1970.tab index 19515f7..cf9cf20 100644 --- a/zone1970.tab +++ b/zone1970.tab @@ -312,8 +312,6 @@ TO -210800-1751200 Pacific/Tongatapu TR +4101+02858 Europe/Istanbul TW +2503+12130 Asia/Taipei UA +5026+03031 Europe/Kyiv Ukraine (most areas) -UA +4837+02218 Europe/Uzhgorod Transcarpathia -UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk US +404251-0740023 America/New_York Eastern (most areas) US +421953-0830245 America/Detroit Eastern - MI (most areas) US +381515-0854534 America/Kentucky/Louisville Eastern - KY (Louisville area) -- 2.37.2
On 2022-08-28 04:36:55 (+0800), Paul Eggert via tz wrote:
* backward: New backward-compatibility links for the moved zones. * backzone (Europe/Uzhgorod, Europe/Zaporozhye): Move zones here ... * europe: ... from here. * zone.tab, zone1970.tab (Europe/Uzhgorod, Europe/Zaporozhye): Remove.
Considering how unreliable a source Shanks & Pottenger is known to be, this change is probably correct. However, it would be good to list at least one of the mentioned "contemporaneous government resolutions" in each of these comments.
+# Although Shanks & Pottenger say Transcarpathia used CET 1990/1991, +# this unreliable source contradicts contemporaneous government resolutions +# so for now this dubious zone is in 'backzone'. [...] +# Although Shanks & Pottenger say Zaporizhzhia and eastern Lugansk +# observed DST 1990/1991, this unreliable source contradicts contemporaneous +# government resolutions so for now this dubious zone is in 'backzone'.
[...]
UA +5026+03031 Europe/Kyiv Ukraine (most areas) -UA +4837+02218 Europe/Uzhgorod Transcarpathia -UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk
The " (most areas)" tag is obsolete after this change.
[...] UA +5026+03031 Europe/Kyiv Ukraine (most areas) -UA +4837+02218 Europe/Uzhgorod Transcarpathia -UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk
Same here. Philip -- Philip Paeps Senior Reality Engineer Alternative Enterprises
On 8/27/22 20:03, Philip Paeps via tz wrote:
Considering how unreliable a source Shanks & Pottenger is known to be, this change is probably correct. However, it would be good to list at least one of the mentioned "contemporaneous government resolutions" in each of these comments.
Thanks, in the attached patch I added a pointer to the (somewhat long) discussion, rather than try to repeat bits of it (which would be harder to maintain).
The " (most areas)" tag is obsolete after this change.
No, as Ukraine still has multiple lines in both zone.tab and zone1970.tab after the change, and 'tzselect' etc. need something there. I notice that I messed up NEWS as well. Further patch attached and installed. It affects only commentary.
On 2022-08-28 12:02:21 (+0800), Paul Eggert wrote:
On 8/27/22 20:03, Philip Paeps via tz wrote:
Considering how unreliable a source Shanks & Pottenger is known to be, this change is probably correct. However, it would be good to list at least one of the mentioned "contemporaneous government resolutions" in each of these comments.
Thanks, in the attached patch I added a pointer to the (somewhat long) discussion, rather than try to repeat bits of it (which would be harder to maintain).
That makes sense. Though the pointer dereferences to a comment about "Ukraine's other three zones". There is only one other zone in Ukraine following this change.
I notice that I messed up NEWS as well. Further patch attached and installed. It affects only commentary.
This looks correct. Philip -- Philip Paeps Senior Reality Engineer Alternative Enterprises
On 2022-08-28 12:14:40 (+0800), Philip Paeps via tz wrote:
On 2022-08-28 12:02:21 (+0800), Paul Eggert wrote:
On 8/27/22 20:03, Philip Paeps via tz wrote:
Considering how unreliable a source Shanks & Pottenger is known to be, this change is probably correct. However, it would be good to list at least one of the mentioned "contemporaneous government resolutions" in each of these comments.
Thanks, in the attached patch I added a pointer to the (somewhat long) discussion, rather than try to repeat bits of it (which would be harder to maintain).
That makes sense.
Though the pointer dereferences to a comment about "Ukraine's other three zones". There is only one other zone in Ukraine following this change.
Well ... they're still in backzone ... but that may be unclear to someone reading the commentary without also cross-referencing the Git history. Not sure if that's worth clarifying. Philip -- Philip Paeps Senior Reality Engineer Alternative Enterprises
On 2022-08-28 12:29:43 (+0800), Paul Eggert wrote:
On 8/27/22 23:14, Philip Paeps wrote:
Though the pointer dereferences to a comment about "Ukraine's other three zones". There is only one other zone in Ukraine following this change.
Thanks, I installed the attached.
Good compromise! Thanks for the diligence. :) Philip -- Philip Paeps Senior Reality Engineer Alternative Enterprises
participants (2)
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Paul Eggert -
Philip Paeps