Sorry, that wasn’t fair.
Akbar, the time zone you’re looking for is America/Phoenix. It’s in the northamerica data file and it goes back to the advent of standard time in 1883.
David Braverman
From: David Braverman via tz <tz@iana.org>
Sent: Tuesday 4 November 2025 13:35
To: tz@iana.org
Subject: [tz] Re: Phoenix AZ timezone issue
Who’s going to tell him?
David Braverman
Inner Drive Technology
From: akbar--- via tz <tz@iana.org>
Sent: Tuesday 4 November 2025 13:08
To: tz@iana.org
Subject: [tz] Phoenix AZ timezone issue
🧭 Problem Summary
·
Arizona remains one of the few U.S. states that does not observe Daylight Saving Time (DST) since 1968.
·
However, it identifies its time zone as Mountain Standard Time (MST) — which does change
to MDT when DST applies elsewhere.
·
Because of this, every spring and fall, Arizona’s effective time alignment shifts:
o
In summer, Arizona matches Pacific Daylight Time (PDT).
o
In winter, it matches Mountain Standard Time (MST).
·
This causes systemic issues in digital calendars, automated scheduling, flight bookings, and cross-state business coordination,
requiring frequent manual adjustments.
💡 Recommended Solution
Create and declare a dedicated time zone: “Phoenix Standard Time.”
·
This would be a fixed, non-DST time zone officially recognized by IANA (the Internet Assigned Numbers Authority) and major platforms (Microsoft, Apple, Google).
·
All digital devices could use it as a unique time zone identifier that never shifts with DST — eliminating confusion and rescheduling
errors.
·
It would function similarly to “UTC+7” year-round but would display as “Phoenix Standard Time (PST)” in software systems.
Thank you
Akbar Jaffer
Akbar Jaffer
Office: (415) 335-6950
Mobile: (650) 430-0232
Web: Marketing-QA.com
Meeting: Book time W/Akbar