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Cron Expression Visualizer

Fix "cron expression has 6 parts but expected 5"

Understand the difference between standard UNIX cron and extended Quartz/Spring cron syntax.

The Problem (Error Root Cause)Exception

Your cron parser throws an error because you provided 6 fields (e.g., `* * * * * *`) instead of 5. You are likely trying to schedule at the "seconds" level, but standard UNIX cron only goes down to the "minute" level.

Identified via runtime validation & stack traces
The Solution (Step-by-Step Fix)Verified

If your runtime environment (like standard crontab) only supports 5 fields, remove the first "seconds" field. If you absolutely need sub-minute execution, use a systemd timer, a background worker, or a parser that supports 6-field Quartz syntax (like AWS EventBridge).

Deterministic, non-destructive resolution

Code Standard: Bad Pattern vs Verified Fix

Live Syntax
Anti-Pattern vs Verified Fix
1// ❌ Bad: 6 fields in standard crontab (fails)
2* * * * * * /script.sh
3
4// ✅ Good: 5 fields (runs every minute)
5* * * * * /script.sh

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Frequently Asked Questions

Q:Does GitHub Actions support 6 fields?

No, GitHub Actions workflows use standard 5-field cron syntax.

Q:How do I visualize standard cron?

Use our Cron Visualizer to generate human-readable schedules from any 5-field expression.

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