Cron Parser

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Translate five-field cron expressions.

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Cron Parser Developer Guide

100% Client-Side & Private

Translate a standard five-field cron expression into a readable schedule before adding it to a server, CI pipeline, or task runner.

Key capabilities

  • Translates 5-field standard cron expressions into natural English descriptions
  • Calculates upcoming scheduled execution dates and times
  • Explains minute, hour, day-of-month, month, and day-of-week breakdown
  • Validates syntax and detects invalid range or step values

Common use cases

  • Verifying automated CI/CD schedules, GitHub Actions triggers, and cron jobs
  • Designing background worker schedules for database backups and batch processing
  • Preventing scheduling bugs caused by confusing 0-indexed vs 1-indexed cron fields

How to use Cron Parser

  1. Enter a standard five-field cron expression (e.g. `*/15 * * * *` or `0 2 * * 1-5`)
  2. Read the plain English explanation of when the schedule will trigger
  3. Check the next scheduled run times to verify intended behavior

Frequently asked questions

Does it support 6-field cron expressions with seconds?

DevHub's parser focuses on the universal standard 5-field format used by Linux crontab, AWS EventBridge, and GitHub Actions.

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