[PATCH] No need for America/Coyhaique in zonenow.tab
* zonenow.tab (America/Coyhaique): Remove, since it’s the same as America/Sao_Paolo from now on, given today’s change. --- zonenow.tab | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/zonenow.tab b/zonenow.tab index 6aa41678..093f0a0c 100644 --- a/zonenow.tab +++ b/zonenow.tab @@ -96,8 +96,6 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe # # -04/-03 (Chile DST) XX -3327-07040 America/Santiago most of Chile -# -04/-03 (Chile DST) until 2025-04-06; then -03 -XX -4534-07204 America/Coyhaique Aysén Region # # -04/-03 - AST/ADT (North America DST) XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda @@ -106,7 +104,7 @@ XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda XX +4734-05243 America/St_Johns Newfoundland ("NST/NDT") # # -03 -XX -2332-04637 America/Sao_Paulo eastern South America +XX -2332-04637 America/Sao_Paulo eastern and southern South America # # -03/-02 (North America DST) XX +4703-05620 America/Miquelon St Pierre & Miquelon -- 2.45.2
Hi Paul, Can we keep the new created America/Coyhaique? IMHO it makes more sense to choose a timezone close to your location rather than one more than 4000 km far away (the same length of continental Chile), even if it works the same. Besides, I’m pretty sure there will be more switches in the future, knowing our governments so far… Best regards, Aldrin.
El 22-03-2025, a las 5:32 p.m., Paul Eggert via tz <tz@iana.org> escribió:
* zonenow.tab (America/Coyhaique): Remove, since it’s the same as America/Sao_Paolo from now on, given today’s change. --- zonenow.tab | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/zonenow.tab b/zonenow.tab index 6aa41678..093f0a0c 100644 --- a/zonenow.tab +++ b/zonenow.tab @@ -96,8 +96,6 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe # # -04/-03 (Chile DST) XX -3327-07040 America/Santiago most of Chile -# -04/-03 (Chile DST) until 2025-04-06; then -03 -XX -4534-07204 America/Coyhaique Aysén Region # # -04/-03 - AST/ADT (North America DST) XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda @@ -106,7 +104,7 @@ XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda XX +4734-05243 America/St_Johns Newfoundland ("NST/NDT") # # -03 -XX -2332-04637 America/Sao_Paulo eastern South America +XX -2332-04637 America/Sao_Paulo eastern and southern South America # # -03/-02 (North America DST) XX +4703-05620 America/Miquelon St Pierre & Miquelon -- 2.45.2
Hi Paul, Can we keep the newly created America/Coyhaique? IMHO it makes more sense to choose a timezone close to your location rather than one more than 4000 km far away (the same length of continental Chile), even if it works the same. Besides, I’m pretty sure there will be more switches in the future, knowing our governments so far… Best regards, Aldrin. El 22-03-2025, a las 5:32 p.m., Paul Eggert via tz <tz@iana.org> escribió: * zonenow.tab (America/Coyhaique): Remove, since it’s the same as America/Sao_Paolo from now on, given today’s change. --- zonenow.tab | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/zonenow.tab b/zonenow.tab index 6aa41678..093f0a0c 100644 --- a/zonenow.tab +++ b/zonenow.tab @@ -96,8 +96,6 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe # # -04/-03 (Chile DST) XX -3327-07040 America/Santiago most of Chile -# -04/-03 (Chile DST) until 2025-04-06; then -03 -XX -4534-07204 America/Coyhaique Aysén Region # # -04/-03 - AST/ADT (North America DST) XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda @@ -106,7 +104,7 @@ XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda XX +4734-05243 America/St_Johns Newfoundland ("NST/NDT") # # -03 -XX -2332-04637 America/Sao_Paulo eastern South America +XX -2332-04637 America/Sao_Paulo eastern and southern South America # # -03/-02 (North America DST) XX +4703-05620 America/Miquelon St Pierre & Miquelon -- 2.45.2
Hello, I totally agree with Aldrin, when you travel, you look for the timezones by the region/place you are, for sure no one will look for Sao Paolo in Coyhaique, specially because one is close to Antártida and the other one close to the Ecuador line. Regards, On Sun, Mar 23, 2025, 16:51 Aldrin Martoq Ahumada via tz <tz@iana.org> wrote:
Hi Paul,
Can we keep the newly created America/Coyhaique?
IMHO it makes more sense to choose a timezone close to your location rather than one more than 4000 km far away (the same length of continental Chile), even if it works the same.
Besides, I’m pretty sure there will be more switches in the future, knowing our governments so far…
Best regards,
Aldrin.
El 22-03-2025, a las 5:32 p.m., Paul Eggert via tz <tz@iana.org> escribió:
* zonenow.tab (America/Coyhaique): Remove, since it’s the same as America/Sao_Paolo from now on, given today’s change. --- zonenow.tab | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/zonenow.tab b/zonenow.tab index 6aa41678..093f0a0c 100644 --- a/zonenow.tab +++ b/zonenow.tab @@ -96,8 +96,6 @@ XX +1828-06954 America/Santo_Domingo Atlantic Standard ("AST") - eastern Caribbe # # -04/-03 (Chile DST) XX -3327-07040 America/Santiago most of Chile -# -04/-03 (Chile DST) until 2025-04-06; then -03 -XX -4534-07204 America/Coyhaique Aysén Region # # -04/-03 - AST/ADT (North America DST) XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda @@ -106,7 +104,7 @@ XX +4439-06336 America/Halifax Atlantic ("AST/ADT") - Canada; Bermuda XX +4734-05243 America/St_Johns Newfoundland ("NST/NDT") # # -03 -XX -2332-04637 America/Sao_Paulo eastern South America +XX -2332-04637 America/Sao_Paulo eastern and southern South America # # -03/-02 (North America DST) XX +4703-05620 America/Miquelon St Pierre & Miquelon -- 2.45.2
The guidelines in theory.html were recently updated to call greater attention to the fact that it is not a goal to give every place on Earth a tz identifier that refers to a nearby location: | Here are the general guidelines used for choosing timezone names, in | decreasing order of importance: | ... | If all clocks in a region have agreed since 1970, give them just one | name even if some of the clocks disagreed before 1970, or reside in | different countries or in notable or faraway locations. Otherwise | these tables would become annoyingly large. For example, do not create | a name Indian/Crozet as a near-duplicate or alias of Asia/Dubai merely | because they are different countries or territories, or their clocks | disagreed before 1970, or the Crozet Islands are notable in their own | right, or the Crozet Islands are not adjacent to other locations that | use Asia/Dubai. Note that this is listed sixth out of 17 guidelines “in decreasing order of importance.” -- Doug Ewell, CC, ALB | Lakewood, CO, US | ewellic.org From: Jonathan Abdiel Gonzalez Valdebenito via tz <tz@iana.org> Sent: Sunday, March 23, 2025 9:56 To: Aldrin Martoq Ahumada <aldrin.martoq@gmail.com> Cc: Time Zone Mailing List <tz@iana.org> Subject: [tz] Re: [PATCH] No need for America/Coyhaique in zonenow.tab Hello, I totally agree with Aldrin, when you travel, you look for the timezones by the region/place you are, for sure no one will look for Sao Paolo in Coyhaique, specially because one is close to Antártida and the other one close to the Ecuador line. Regards, On Sun, Mar 23, 2025, 16:51 Aldrin Martoq Ahumada via tz <mailto:tz@iana.org> wrote: Hi Paul, Can we keep the newly created America/Coyhaique? IMHO it makes more sense to choose a timezone close to your location rather than one more than 4000 km far away (the same length of continental Chile), even if it works the same. Besides, I’m pretty sure there will be more switches in the future, knowing our governments so far… Best regards, Aldrin.
On Sun, 23 Mar 2025 at 11:51, Aldrin Martoq Ahumada via tz <tz@iana.org> wrote:
Can we keep the newly created America/Coyhaique?
Look carefully at this particular patch: It only removes reference to America/Coyhaique from zonenow.tab, a file which is explicitly designed to list one (and only one) row for each region where civil timestamps are predicted to agree from now on. From this perspective, Aysén Region's now-year-round observation of UTC-3 matches Magallanes Region as well as Argentina and much of Brazil. Therefore, such regions are grouped together in that file under the updated comment "eastern and southern South America". This only affects tzselect when "now" mode is selected at the first prompt. (This patch satisfied our pre-release checks following my second commit for Aysén <https://github.com/eggert/tz/commit/ed0aff98da0938d196076d964c915b5934be036f> which updated the UNTIL date in the new America/Coyhaique zone and only affects the obsolescent isdst flag for a period of 17 days. Importantly, even if we hadn't changed the UNTIL date in that way, this patch to zonenow.tab would've quickly become necessary anyway as "now" continues to move forward.) The new zone entry for America/Coyhaique, defined in the southamerica file, remains referenced in zone1970.tab and the legacy zone.tab, the files more conventionally used by tzselect. It is available for use in the new tzdata version 2025b which was published yesterday. -- Tim Parenti
participants (5)
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Aldrin Martoq Ahumada -
Doug Ewell -
Jonathan Abdiel Gonzalez Valdebenito -
Paul Eggert -
Tim Parenti