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If you work with a client or a partner in another city, and your recurring meeting moved by an hour, you're not the only one.

Where you are now

What if the problem isn't the math? The difference between two cities is not fixed. Israel and the United States change their clocks on different dates, and Argentina has no daylight saving time at all.

For a few weeks a year the difference is not the one you're used to. In those weeks a recurring meeting "moves by an hour", and someone waits alone on the video call.

Nobody remembers all these dates, and neither does your agent. Ask it, and it answers from memory, usually with the difference that holds most of the year.

Axel Jedlitschka

Who's talking to you: Axel Jedlitschka

At one job I set sales meetings by phone, ran sales meetings and ran service meetings. That is also where I started building systems and automations, processes that run on their own, for business owners.

It all started with an income and expenses table I wanted to build for myself in Excel, and from there it kept growing. I built a system for business forecast analysis, and it served the marketing and sales of the company I worked at very well. A meeting set between two cities needs the same thing: an answer from the data, not from memory, because nobody remembers all the dates when the clocks move, and neither does your agent.

Axel Jedlitschka

What to ask for

  • Once, every city

    Type the meeting time once and see it in every city, with the date and the difference.

  • The odd week, in advance

    Know in advance the dates in the next 12 months when each difference changes, and which city changes its clocks.

  • No internet needed

    Get one file that opens in any browser and works offline, in English, Hebrew and Spanish.

  • A date next to every time

    Know that the agent runs a script instead of doing math in its head, and always writes the date next to the time.

  • A time that doesn't exist

    Know that a time that doesn't exist on the night the clock jumps is flagged, never computed silently.

There is a way

An AI agent is a program like Claude Code, Codex or Cursor that does work for you on your computer. The most important rule in the kit: set a recurring meeting by the organizer's city, never by a fixed difference. A fixed difference is right for part of the year; a city is right all year. Every time comes from the IANA time zone database, the list every operating system, browser and calendar uses, not from the agent's memory.

  1. Ask.You ask the agent what time it will be for your client, and for your partner, on the day and at the time of the meeting.
  2. Run.The agent does not answer from memory. It runs a script, a small program that converts a time between cities, and gets a table with the day, the date, the time and the difference for each city.
  3. Flag.Under the table the script writes a note when the difference on that date is not the usual one, and the agent tells you in plain words, with the dates.
  4. Update.For a recurring meeting it finds every date in the next 12 months when the difference changes, and tells each participant when the meeting time moves for them.

"IST" means Israel, India and Ireland, and "EST" is New York in winter only. So the script refuses abbreviations like these, and asks for a city.

The way, in one kit

Time zone kit · a kit by Axel Jedlitschka

Your agent gives you the meeting time in every city from the time zone database, not from memory.

  • A 9-point checklist the agent goes through before every answer
  • The installer checks its own work: it compares every file and confirms your computer gives the correct clock-change dates
  • Before it writes anything to your computer, the installer shows what it will do and asks you
  • A world clock page: one file that opens in any browser and works offline, in English, Hebrew and Spanish
  • A list of the dates in the next 12 months when each difference changes, below the cities on the page
  • A Claude Code skill called convert-times, an instruction file the agent loads, that makes it run a script instead of doing math in its head
  • A script that converts a time between cities and finds the change dates, with nothing else to install
  • A 9-point checklist the agent goes through before every answer
  • A message template for participants, in English, Hebrew and Spanish
  • An instruction block for other agents: Codex, Cursor or Gemini CLI
The first page of the guide: a world clock for meetings

The comparison

Free

Time zone kit

Where the difference comes from
The time zone database, for each date
In the week the difference changes
The dates are flagged in advance
A recurring meeting in the calendar
By city, and right all year

Math in your head, or an agent answering from memory

Where the difference comes from
Memory, with the difference of most of the year
In the week the difference changes
The meeting moves by an hour, and someone waits alone
A recurring meeting in the calendar
A fixed difference, right for part of the year

The offer

A world clock page, a skill, a script, a 9-point checklist, and a 6-page guide

Price: FreeNo credit card, and no part is held back for payment

Get the kit

The kit is free and you get it right away. You only get marketing messages if you tick the box, and you can unsubscribe at any time.

As soon as you leave your details, a thank-you page opens with a button to download the kit. You choose the language of the guide in the form: Hebrew, English or Spanish.

By Axel Jedlitschka

What you get

Promised

  • The full kit, free, as soon as you leave your details.
  • No part is held back for payment.
  • Your details are not sold, and are not passed to anyone except the infrastructure providers that run the site.
  • A question about the kit? Send a message on Instagram, @theonlyaxelj.

Not promised

  • A result. The kit teaches your agent a method, and the result depends on how you apply it and on your work. It is general knowledge, not personal advice.
  • That the daylight saving rules stay as they are. Countries sometimes change the law, so keep your browser and operating system up to date.

There is no purchase and no payment, so there is nothing to cancel. You can withdraw your consent to marketing messages at any time.

Questions?

How do I get the kit?

Leave your details, and a thank-you page opens right away with a button to download the kit. The page needs no install: unzip the file and double-click world-clock.html. For the agent there is one command in the terminal, the window where you type commands to your computer: from the unzipped folder, run install.sh.

Is it really free?

Yes. No credit card, and no part is held back for payment.

Doesn't Google Calendar already do this?

Yes, when the event is set by city. But the calendar does not warn you ahead of time that a week is unusual, and if someone set the meeting by a fixed difference, it moves. The page shows you the dates in advance, and the skill makes sure the agent sets meetings by city.

Does it really work without internet?

Yes. The page is one file that loads nothing from outside and sends nothing anywhere. Your list is saved in the browser, and "Export JSON" saves a backup copy.

Do I need Python?

Not for the page. The script needs Python, the programming language it is written in, which usually comes with macOS and Linux. On Windows you also install the time zone database once, and the guide gives you the command.

I work with Codex or Cursor, not Claude Code.

The kit has an instruction block (AGENTS.md) for other agents: Codex, Cursor or Gemini CLI. Copy it into the instructions file your agent reads.

How do I uninstall?

Delete the convert-times folder from your skills folder and start a new session. The page you opened from the zip stays with you like any other file.

Will I get spam or phone calls?

Your details are used to send you the kit and to follow up on it. Marketing messages are sent only if you ticked the consent box, and you can unsubscribe at any time. You can also ask to see, correct or delete your details.

What now

You can keep trusting the difference that holds most of the year, or type the meeting time once and see it in every city.

A kit to install and a 6-page PDF guide: a world clock page that works offline, a skill for your agent and a 9-point checklist, free.

Price: FreeNo credit card

Get the kit

The kit is free and you get it right away. You only get marketing messages if you tick the box, and you can unsubscribe at any time.

The kit is ready to download right after your details

The kit is free and you get it right away. You only get marketing messages if you tick the box, and you can unsubscribe at any time.

Your details are used to get back to you. What is collected, why, and who receives it: see the Privacy Policy (opens in a new tab).