Cron Expression Parser
Explain a cron expression in plain language and preview the next run times, right in your browser.
100% private — everything runs in your browser
How to Use
- 1
Type a five-field cron expression, or pick a preset.
- 2
Click Explain to get a plain-language summary of the schedule.
- 3
Check the next run times below — they use your local time zone.
Examples
Every 15 minutes on weekdays
Input
*/15 9-17 * * 1-5Output
Every 15 minutes, Monday to Friday, 09:00–17:59Midnight on the first
Input
0 0 1 * *Output
At 00:00 on day 1 of every monthFAQ
Which cron dialect is supported?
Standard five-field cron, as used by Linux crontab, Vixie cron, GitHub Actions and most schedulers.
Why do the next runs differ from my server?
Preview times use your browser time zone. Servers often run in UTC — shift the hour field if needed.
Can it read six-field expressions?
No. Expressions with a seconds or year field are rejected because most schedulers expect five fields.
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