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Cron Expression Visualizer

Debug cron job not running at the scheduled time

Figure out why your cron expression is firing at the wrong time or not firing at all using visual cron schedule parsing.

The Problem (Error Root Cause)Exception

You set up a background task, but it triggers at midnight instead of noon, or runs every minute instead of once an hour. Cron syntax (`* * * * *`) is notoriously easy to misconfigure.

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

Visualize your cron expression to see the exact upcoming run times. A common mistake is using `*` for minutes when you meant `0` (e.g., `* 12 * * *` runs every minute of the 12th hour, while `0 12 * * *` runs exactly at noon).

Deterministic, non-destructive resolution

Code Standard: Bad Pattern vs Verified Fix

Live Syntax
Anti-Pattern vs Verified Fix
1// ❌ Bad: Runs every minute during 12 PM
2* 12 * * * /path/to/script.sh
3
4// ✅ Good: Runs exactly once at 12:00 PM
50 12 * * * /path/to/script.sh

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Frequently Asked Questions

Q:Does cron respect my server time zone?

Yes, cron uses the system time zone by default. If your server is UTC, a job scheduled for 12:00 will run at 12:00 UTC.

Q:How can I test my cron expression?

Use our Cron Schedule Visualizer to generate a human-readable list of the next 10 execution times.

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