Parse cron expressions and preview upcoming runs.
Inspect standard five-field cron schedules in local time without sending expressions to a server.
Workspace
Cron expression parsed successfully.
Format: minute hour day-of-month month day-of-week.
Schedule preview
Minute: every 15 units Hour: range 9-17 Day of month: every value Month: every value Day of week: range 1-5 Next 5 runs: 7/3/2026, 9:00:00 AM 7/3/2026, 9:15:00 AM 7/3/2026, 9:30:00 AM 7/3/2026, 9:45:00 AM 7/3/2026, 10:00:00 AM
Run 17/3/2026, 9:00:00 AM
Run 27/3/2026, 9:15:00 AM
Run 37/3/2026, 9:30:00 AM
Run 47/3/2026, 9:45:00 AM
Run 57/3/2026, 10:00:00 AM
About this cron parser
Use this cron parser to inspect standard five-field cron expressions and preview upcoming run times in your local timezone.
Common use cases
- Check job schedules before adding them to a server or CI workflow.
- Understand minute, hour, day, month, and weekday fields.
- Preview upcoming runs for common intervals and weekday schedules.
How to use this tool
- Enter a standard five-field cron expression.
- Read the field explanation for minute, hour, day, month, and weekday.
- Check the next five local run times before using the schedule elsewhere.
Example
Input
*/15 9-17 * * 1-5
Output
Every 15 minutes during working hours on weekdays.
Common errors
- Use exactly five fields: minute, hour, day of month, month, and day of week.
- Named months or weekdays are not supported in this version; use numeric values.
- Large schedules are previewed in the browser's local timezone, which may differ from a server timezone.
Privacy note
Dev Atlas keeps this tool local in your browser. Your input is not intentionally uploaded to a Dev Atlas server for processing.
FAQ
Which cron format is supported?
This tool supports standard five-field cron expressions.
Does it use UTC?
The preview uses your browser's local timezone.
Does it support named months or weekdays?
This version supports numeric fields, ranges, lists, wildcards, and step values.