Cron Expression Parser Online — Next Run Times

Paste a standard 5- or 6-field cron expression and see the next fire times in UTC or your local timezone. Ideal for checking schedules before they hit production.

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Cron parser — developer notes
Preview upcoming fire times for standard Unix cron (5 fields) or 6-field expressions with seconds. Not AWS EventBridge or Quartz dialects.

How parsing works

Enter a cron expression, choose 5 or 6 fields, how many next runs to list, and UTC vs local display. Parse to see the upcoming schedule from “now”.

Options

Field count (5 / 6)
5 fields is classic crontab (minute hour day-of-month month day-of-week). 6 fields prepends seconds for schedulers that support them.
Next runs (5 / 10 / 25)
Show enough upcoming fires for planning without flooding the list.
Timezone (UTC / local)
Align the next-run list with ops expectations — UTC for servers, local for wall-clock checks.

Examples

Weekdays at 09:00

Expression

0 9 * * 1-5

Meaning

Every Monday–Friday at 09:00 (minute hour …)

Every 15 minutes (6-field)

Expression

0 */15 * * * *

Meaning

At second 0 of every 15th minute

Related utilities

Need epoch math? Open the Unix timestamp converter. Generate IDs with the UUID generator.

Cron parser FAQ

Scheduling questions

Are @daily macros supported?

No. Expand macros to a standard 5- or 6-field expression (for example 0 0 * * * for midnight daily).

Is this Quartz or EventBridge cron?

No. This tool targets common Unix-style 5/6-field expressions, not vendor-specific dialects.

Does day-of-month vs day-of-week use OR or AND?

When both day fields are constrained (not *), fire times match if either field matches — common Unix semantics.

Is my expression uploaded?

Never — parsing stays in your browser.

Looking for converters, encoders, formatters, and minifiers in one place? Developer tools hub Open the curated developer tools catalogue.