Cron Expression Parser
Parse cron expressions and see the next scheduled run times. Supports standard 5-field cron syntax.
Every 5 minutes
Common examples:
How to use
- 1 Type or paste a cron expression (5 or 6 fields) into the input field.
- 2 The tool shows a plain-English description of the schedule.
- 3 The next 5 run times are listed so you can verify the schedule is correct.
- 4 Use it to validate cron jobs before deploying to production.
Key features
- Parses standard 5-field and extended 6-field cron expressions
- Shows a plain-English description of the schedule
- Lists the next 5 execution times with exact dates and times
- Supports special strings like @daily, @weekly, @reboot
What is a Cron Expression Parser?
A Cron Expression Parser translates the compact 5-field cron syntax into plain English, so you can instantly understand when a scheduled job will run — without memorising the syntax. It also shows the next execution times, so you can verify the schedule before deploying.
Cron is the standard scheduler for Unix/Linux systems, and its syntax is used across dozens of platforms: GitHub Actions, Kubernetes CronJobs, AWS EventBridge, Heroku Scheduler and more. A single misread field can mean a job runs every minute instead of every month.
When to Use This Tool
Auditing existing schedules
Paste a cron expression from a legacy codebase or CI config and instantly confirm what it actually does.
Debugging unexpected job runs
Check why a job ran at 3am on a Sunday — verify the next execution times before touching the expression.
Explaining schedules to non-devs
Convert `0 9 * * 1-5` into "Every weekday at 9:00 AM" for a Slack message or ticket description.
Validating before deploying
Confirm `*/5 * * * *` means every 5 minutes — not every 5 hours — before pushing a GitHub Actions workflow.
Quick Examples to Try
Click any expression to load it in the parser above.