Does it support 6-field (with seconds) or Quartz-style cron syntax?

This tool targets the standard 5-field Unix cron format used by crontab; some schedulers (like Quartz or certain CI systems) use a 6- or 7-field variant with seconds and/or year, which isn't what this parses.

What timezone are the schedules based on?

Cron expressions themselves don't encode a timezone -- how they're interpreted depends on the timezone configuration of the system or scheduler actually running the job, which this tool doesn't know about.

developer Client-Side Only

Cron Expression Generator & Explainer

Build and translate standard 5-part cron schedules into human-readable English descriptions.

Cron Expression (5 parts: Min Hour Dom Mon Dow)

Schedule Translation

Runs daily at 06:00 UTC

Zero-Leakage Local Processing

All text formatting, JSON/JWT parsing, cryptographic hashing, and image compression execute entirely inside your browser. No private data is ever sent to Burnjet servers.

Quick Reference & Instructions

Simple steps, pro tips, and execution details

Paste or Enter Input

Paste your raw JSON, code snippet, tokens, or values into the input panel.

Select Options & Modes

Choose formatting options, indentation spaces, or target conversion standards.

Copy or Download Output

One-click copy to clipboard or download the formatted file ready for production.

How It Works

Parses cron expressions and outputs clear schedules plus future mock run dates.

Frequently Asked Questions

Common questions about calculations, assumptions, and edge cases.

In order: minute, hour, day of month, month, and day of week -- for example "0 9 * * 1-5" means 9:00 AM every weekday.

In-Depth Guides & Tutorials

Explore all guides →

8 min read•development

How to Create Cron Expressions: A Complete Beginner’s Guide

Learn how 5-field cron syntax works, how to schedule recurring tasks, and how to build and explain cron expressions in human-readable English.

Read Tutorial

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