Web Dev Helpers
Cron Expression Explainer
Translate a cron expression to plain English and preview the next runs.
Cron expression
Plain English
at 09:00, on Mon, Tue, Wed, Thu, Fri
Next runs (your local time)
- 5/15/2026, 9:00:00 AM
- 5/18/2026, 9:00:00 AM
- 5/19/2026, 9:00:00 AM
- 5/20/2026, 9:00:00 AM
- 5/21/2026, 9:00:00 AM
- 5/22/2026, 9:00:00 AM
About this tool
Paste any 5-field cron expression (minute, hour, day-of-month, month, day-of-week) to see it described in plain English and a list of the next several fire times in your local timezone. Supports steps (*/5), ranges (1-5), lists (1,3,5) and the @hourly / @daily / @weekly / @monthly / @yearly shortcuts.
FAQs
Which cron flavour is supported?
Standard 5-field POSIX cron, plus the common @hourly / @daily / @weekly / @monthly / @yearly shortcuts. Quartz-style 6 or 7 field expressions are not supported.
How is day-of-week numbered?
0 or 7 is Sunday, 1 is Monday, through 6 Saturday. So '0 9 * * 1-5' runs at 09:00 Mon-Fri.
What timezone are previews in?
Your browser's local timezone. Server-side cron usually runs in UTC - check the host's TZ setting.