# Cron Timezone Converter

Convert POSIX 5-field cron schedules between timezones, including day/hour wrap-around handling.

Canonical: https://tools.karlquinsland.com/tools/html/cron-converter/
Published: 2026-02-13
Updated: 2026-02-12
Tags: html, cron, timezone, scheduling, convert


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# Cron Timezone Converter

![Tool icon](https://tools.karlquinsland.com/tools/html/cron-converter/images/tool-icon.svg)

Convert a POSIX 5-field cron expression from one timezone to another. The tool handles weekday/day-boundary rollover and can output split expressions for engines that do not support wrap-around hour ranges.

[Open the tool](https://tools.karlquinsland.com/tools/html/cron-converter/tool.html)

## Notes

- Supports POSIX 5-field syntax (`minute hour day-of-month month day-of-week`).
- Day-of-week accepts `0-7`; `0` and `7` are both treated as Sunday.
- Conversion output is generated for the weekly-style case where `day-of-month` and `month` are `*`.
- The calendar preview is a fixed Monday-Sunday grid with overlap coloring.

## Dependencies

No external dependencies listed.

## Changelog



## `abfb121` - February 26, 2026 11:49

- Restore cron converter formatting and keep calendar fix


## `22745c0` - February 26, 2026 11:48

- Fix cron calendar panel centering


[View full changelog (3 commits)](https://tools.karlquinsland.com/tools/html/cron-converter/changelog/index.md)