Hello The Timezone for Cape Town is UTC+01:00 The western Northern Cape and Western Cape differ, however. Everywhere on land west of 22°30′ E effectively experiences year-round daylight saving time because of its location in true UTC+01:00 but still being in South African Standard Time. Sunrise and sunset are thus relatively late in Cape Town, compared to the rest of the country.
Please provide references to justify your assertions. I recommend not consulting a GenAI for the information. Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h> Guardian of DBD::Informix - v2018.1031 - http://dbi.perl.org "Blessed are we who can laugh at ourselves, for we shall never cease to be amused." On Mon, Nov 10, 2025 at 11:56 Justin Singh via tz <tz@iana.org> wrote:
Hello
The Timezone for Cape Town is UTC+01:00
The western Northern Cape and Western Cape differ, however. Everywhere on land west of 22°30′ E effectively experiences year-round daylight saving time because of its location in true UTC+01:00 but still being in South African Standard Time. Sunrise and sunset are thus relatively late in Cape Town, compared to the rest of the country.
FYI: Justin’s email appears to be invalid. Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h> Guardian of DBD::Informix - v2018.1031 - http://dbi.perl.org "Blessed are we who can laugh at ourselves, for we shall never cease to be amused." On Mon, Nov 10, 2025 at 12:38 Jonathan Leffler <jonathan.leffler@gmail.com> wrote:
Please provide references to justify your assertions. I recommend not consulting a GenAI for the information.
Jonathan Leffler <jonathan.leffler@gmail.com> #include <disclaimer.h> Guardian of DBD::Informix - v2018.1031 - http://dbi.perl.org "Blessed are we who can laugh at ourselves, for we shall never cease to be amused."
On Mon, Nov 10, 2025 at 11:56 Justin Singh via tz <tz@iana.org> wrote:
Hello
The Timezone for Cape Town is UTC+01:00
The western Northern Cape and Western Cape differ, however. Everywhere on land west of 22°30′ E effectively experiences year-round daylight saving time because of its location in true UTC+01:00 but still being in South African Standard Time. Sunrise and sunset are thus relatively late in Cape Town, compared to the rest of the country.
On Mon, 10 Nov 2025 at 14:55, David Grosz via tz <tz@iana.org> wrote:
What he has observed though is that there are many locations in the world where parts of a country sit across a neighbouring timezone without observing that timezone. I think though that there is no place for those discussions on this group.
It's certainly not the case that there's *no* place for such discussions here; such facts are quite often germane to the types of discussions that form the core of our work. But as a complete *non sequitur*, apropos of nothing at all? That is indeed quite a bit less helpful. -- Tim Parenti
IMHO, we should defer all questions or info about boundaries to the TZBB project. https://github.com/evansiroky/timezone-boundary-builder On Mon, Nov 10, 2025, 4:13 PM Tim Parenti via tz <tz@iana.org> wrote:
On Mon, 10 Nov 2025 at 14:55, David Grosz via tz <tz@iana.org> wrote:
What he has observed though is that there are many locations in the world where parts of a country sit across a neighbouring timezone without observing that timezone. I think though that there is no place for those discussions on this group.
It's certainly not the case that there's *no* place for such discussions here; such facts are quite often germane to the types of discussions that form the core of our work. But as a complete *non sequitur*, apropos of nothing at all? That is indeed quite a bit less helpful.
-- Tim Parenti
On 11/11/2025 03:33, David Grosz via tz wrote:
I think it was an observation that has taken too much of everybody’s time analysing to understand what he was actually trying to say.
My initial thought to the original post was "So what?" as I could not see anything that said a timezone rule was wrong. Simply that which rule an area is actually following may be the question? Which as has been said is not a problem for this list. Educating 'AI Bots' is just a new problem when education of the general public is still ongoing work. That various sites give different results as to which rule applies to a location does not help of cause, along which the historic aspects where a location may well have changed the rule they are using over time! -- Lester Caine ------------ https://myhomecloud.uk
participants (6)
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David Grosz -
Jonathan Leffler -
Justin Singh -
Lester Caine -
Matt Johnson-Pint -
Tim Parenti