Which cron syntax features are supported?
This tool supports 5 fields with wildcards, ranges, lists, and step values. Example: */15 9-17 * * 1-5.
Cron Expression Generator & Parser
Build cron schedules with UI fields, parse any 5-field cron expression into plain English, and preview the next 5 run times in your local timezone.
1) Build Expression
Use standard cron syntax: *, ranges (1-5), lists (1,3,5), and steps (*/10).
2) Parse / Validate
Human-readable
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Next 5 Runs
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Examples
Click an example to load and copy quickly.
FAQ
How are day-of-month and day-of-week interpreted?
Cron usually treats these two fields as OR when both are restricted. This calculator follows that behavior.
Does this include seconds or advanced Quartz syntax?
No. This page is focused on classic 5-field crontab expressions for portability.