Timezone Tools logo

Timezone Tools

Community
henkisdabro
timezone-tools

Get current time in any timezone and convert times between timezones. Use when working with time, dates, timezones, scheduling across regions, "what time is it in X", "convert 3pm Sydney to London", DST checks, or when the user mentions specific cities/regions for time queries. Supports IANA timezone names. Do NOT use for date arithmetic (adding days/months), recurring event scheduling, business-day calculations, or full calendar/booking logic - those need a dedicated date library or scheduling tool.

Overview

Publisherhenkisdabro
Repositorywookstar-claude-plugins
Skill nametimezone-tools
Stars
88
Forks
12
Bundled files
5
Links
Skill sourceRepository
  • Markdown instructions

    A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.

  • Works with any LLM

    AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.

  • 5 bundled files

    Scripts, templates, and references the model can read while it works. Files are read-only and never executed.

  • Open source

    Published by henkisdabro on GitHub. Read the source before you install it.

Installation

Install the Timezone Tools AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

1

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

  1. Open the app and go to Plugins → Skills.
  2. Choose "Install from GitHub".
  3. Paste the skill folder URL below and confirm.
  4. Enable the skill in any chat where you want it available.
Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.
2

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills
git clone --depth 1 https://github.com/henkisdabro/wookstar-claude-plugins.git /tmp/wookstar-claude-plugins
mkdir -p .claude/skills
cp -r /tmp/wookstar-claude-plugins/plugins/timezone-tools/skills/timezone-tools .claude/skills/timezone-tools
Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Timezone Tools in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Timezone Tools on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Timezone Tools is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

  • Loaded only when it is needed

    The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.

  • Switch models mid-chat

    Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

Timezone Tools

Get current time in any timezone and convert times between different timezones using IANA timezone database.

Quick Start

Get current time in a timezone

bash
python scripts/get_time.py "America/New_York"

Convert time between timezones

bash
python scripts/convert_time.py "America/New_York" "14:30" "Australia/Perth"

Search for timezone names

bash
python scripts/list_timezones.py "perth"

Instructions

When the user asks about time or timezones:

  1. For current time queries (e.g., "What time is it in Tokyo?"):

    • Use scripts/get_time.py with IANA timezone name
    • If unsure of timezone name, search first with list_timezones.py
    • Script outputs: timezone, datetime, day of week, DST status

  2. For time conversions (e.g., "What's 2pm EST in Perth time?"):

    • Use scripts/convert_time.py with source timezone, time (HH:MM 24-hour), target timezone
    • Script shows source time, target time, and time difference
    • Automatically handles DST changes

  3. For timezone searches:

    • Use scripts/list_timezones.py with city/country name
    • Returns matching IANA timezone names

Common Timezones Reference

For quick reference, see data/common_timezones.json which includes major cities worldwide, with Perth prominently featured.

User's local timezone: The scripts automatically detect your local timezone using tzlocal.

Examples

Example 1: Current time query

User: "What time is it in Perth?"

bash
python scripts/list_timezones.py "perth"
# Output: Australia/Perth

python scripts/get_time.py "Australia/Perth"
# Output:
# Timezone: Australia/Perth
# Current time: 2025-11-07T15:30:45
# Day: Thursday
# DST: No

Example 2: Time conversion

User: "I have a meeting at 2pm New York time, what time is that in Perth?"

bash
python scripts/convert_time.py "America/New_York" "14:00" "Australia/Perth"
# Output:
# Source: America/New_York - 2025-11-07T14:00:00 (Thursday, DST: No)
# Target: Australia/Perth - 2025-11-08T03:00:00 (Friday, DST: No)
# Time difference: +13.0h

Example 3: Multiple timezone search

User: "What are the timezone codes for London, Tokyo, and Sydney?"

bash
python scripts/list_timezones.py "london"
python scripts/list_timezones.py "tokyo"
python scripts/list_timezones.py "sydney"
# Outputs:
# Europe/London
# Asia/Tokyo
# Australia/Sydney

Time Format

  • All times use 24-hour format (HH:MM): 14:30 not 2:30 PM
  • ISO 8601 datetime format for output: 2025-11-07T14:30:45
  • IANA timezone names (e.g., America/New_York, not EST)

Troubleshooting

"Invalid timezone" error

  • Use IANA timezone names: America/New_York not EST or Eastern
  • Search with list_timezones.py if unsure
  • Check data/common_timezones.json for reference

"Invalid time format" error

  • Use 24-hour format: 14:30 not 2:30 PM
  • Format must be HH:MM with colon separator

Missing dependencies

Install required Python packages:

bash
pip install tzlocal

Dependencies

  • Python 3.9+
  • tzlocal>=5.0 - for local timezone detection
  • zoneinfo - built-in Python 3.9+ (IANA timezone database)

Notes

  • Scripts automatically handle Daylight Saving Time (DST)
  • Local timezone is auto-detected from system
  • All timezone data uses IANA Time Zone Database
  • Perth, Australia timezone: Australia/Perth (UTC+8, no DST)

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

Frequently asked questions

What does the Timezone Tools AI skill do?

Get current time in any timezone and convert times between timezones. Use when working with time, dates, timezones, scheduling across regions, "what time is it in X", "convert 3pm Sydney to London", DST checks, or when the user mentions specific cities/regions for time queries. Supports IANA timezone names. Do NOT use for date arithmetic (adding days/months), recurring event scheduling, business-day calculations, or full calendar/booking logic - those need a dedicated date library or scheduling tool.

Why use Timezone Tools on TypingMind?

Because you install it once and use it with any model. Timezone Tools is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Timezone Tools in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/henkisdabro/wookstar-claude-plugins/tree/main/plugins/timezone-tools/skills/timezone-tools. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use Timezone Tools?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Timezone Tools?

As many as you like. As long as a model supports skills, you can use Timezone Tools with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Timezone Tools AI skill free?

It is published on GitHub by henkisdabro. Check the repository for licensing terms. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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