[tz] Questions About tz database

[Jaime Suazo Vacca]

Thank you very much
I missed that rule

Best regards/Saludos Cordiales,
Jaime Suazo
Mining Techn. Impl. Spec.
Caterpillar

From: Jon Skeet <skeet at pobox.com>
Sent: Thursday, March 9, 2023 5:29 PM
To: Jaime Suazo Vacca <Jaime.SuazoVacca at cat.com>
Cc: tz at iana.org
Subject: Re: [tz] Questions About tz database

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I think you're misinterpreting the data - you've missed the "2019 to max" rule of the second Sunday in April. That "max" part means that it continues until further notice. So basically in any given year (in the range shown), there are two rules active: one transition in April and one in September.

I would expect any established IANA database code to handle this with no problems. Here's the set of transitions generated by Noda Time, for America/Santiago between 2015 and 2030 for example: https://nodatime.org/tzvalidate/generate?version=2022g&zone=America/Santiago&startYear=2015&endYear=2030<https://urldefense.com/v3/__https:/nodatime.org/tzvalidate/generate?version=2022g&zone=America*Santiago&startYear=2015&endYear=2030__;Lw!!M7dyoZOwuwF45AU!1tJsYM5JYH9Sqe2ZiEMSOImKOGAs7_pg-gD_BFXzXma5pd_nj4Bqw4CJFB0_G6_10PPb0L3kM9BwoKc7$>

On Thu, 9 Mar 2023 at 20:23, Jaime Suazo Vacca <Jaime.SuazoVacca at cat.com<mailto:Jaime.SuazoVacca at cat.com>> wrote:
That is correct we are changing to utc -4 on April second

But I don’t see that here. I see the change for 2023 September. Unless Im misinterpreting the tzdata2022g

If that is the case I apologize


[cid:image001.png at 01D952B5.D26BF930]

Best regards/Saludos Cordiales,
Jaime Suazo
Mining Techn. Impl. Spec.
Caterpillar

From: Jon Skeet <skeet at pobox.com<mailto:skeet at pobox.com>>
Sent: Thursday, March 9, 2023 4:25 PM
To: Jaime Suazo Vacca <Jaime.SuazoVacca at cat.com<mailto:Jaime.SuazoVacca at cat.com>>
Cc: tz at iana.org<mailto:tz at iana.org>
Subject: Re: [tz] Questions About tz database

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Is America/Santiago not the right time zone for you? That has a currently-scheduled change to UTC-4 on April 2nd, according to the latest published version of the database (2022g).

Please could you give more information if that's not correct?

On Thu, 9 Mar 2023 at 19:14, Jaime Suazo Vacca via tz <tz at iana.org<mailto:tz at iana.org>> wrote:
Hello !!!
Is this the right place to ask if the latest Chilean tz is going to be added to the database?

Currently is not there and we have a tz change on April 2023

Thanks for any information you can share with us

Best regards/Saludos Cordiales,
Jaime Suazo
Mining Techn. Impl. Spec.
Caterpillar



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