Cron Next Run Calculator

When to use?

Use it to check when a cron expression actually runs, or to verify an unexpected run cadence.

How to use

• Enter a cron expression (e.g. 0 9 * * 1-5).
• The next 5 run times from now are shown.

Input Explanation

Enter the cron expression (e.g. 0 9 * * 1-5) whose cadence you want to check.

Calculation Basis

It parses the expression with cron-parser and computes the next N scheduled times based on the browser's local time zone, formatted as a list.

Usage Examples

• Verify schedules - Check when a cron expression actually runs.
• Quick pre-deploy check - Check inputs and output to reduce errors before dev/ops work.
• Aid docs/reviews - Copy the result into dev docs, issues, or review comments.

Examples

• 0 9 * * 1-5 → the next 5 weekday 9 AM times
• */30 * * * * → the next 5 run times at 30-minute intervals

Cautions

• Generated output is for reference; test carefully before production use.
• It uses the browser time zone, so a server in another zone may run at different times.

Guides

Calculating next runs

Enter a cron expression and it computes the next run times from the current moment. It supports 5-field (min/hour/day/month/weekday) or 6-field (with seconds) formats.

Prevent operational mistakes

Verify the expression before deploy to confirm it runs at the intended time. Use it with the Cron Expression Generator to build and verify in one flow.

FAQ

How many are shown?

The next 5 run times from the current moment.

Do I just enter the cron expression?

Yes. Enter a 5-field cron expression and it computes the next runs from now.

Can run times differ from the real server?

It computes by the browser time zone, so a server in another zone may run at different times.

How is the time zone applied?

It uses the browser's current time zone; a different server zone yields different results.

Related Tools

• Cron Expression Generator - Generate a cron expression by combining minute, hour, day, month, and weekday values.
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