Cron Editor

Visually build complex Cron schedules and instantly check the next execution times in your local timezone.

CronDeck v2.6
Cron Builder
*/15 * * * *

*/15

Every hour

Every day

Every month

Every week

Schedule Summary

Calculating...

Next Executions
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Multi-Platform Cron Translator

Detected format:Natural language
Try an example:

In plain words

Every 15 minutes

Expression

*/15 * * * *

Usage snippet

* Escape a literal % in the command as \%  (crontab treats unescaped % as newline)
<minute> <hour> <dom> <month> <dow>  /path/to/command
*/15 * * * *  /path/to/command

Field breakdown

minute

0,15,30,45

hour

*

dayOfMonth

*

month

*

dayOfWeek

*

Next executions

Tue, 10/27/2026, 08:45:00UTC

in 11 minutes

UTC: Tue, 10/27/2026, 08:45:00

Tue, 10/27/2026, 09:00:00UTC

in 26 minutes

UTC: Tue, 10/27/2026, 09:00:00

Tue, 10/27/2026, 09:15:00UTC

in 41 minutes

UTC: Tue, 10/27/2026, 09:15:00

Tue, 10/27/2026, 09:30:00UTC

in 56 minutes

UTC: Tue, 10/27/2026, 09:30:00

Tue, 10/27/2026, 09:45:00UTC

in 1 hour

UTC: Tue, 10/27/2026, 09:45:00

Tue, 10/27/2026, 10:00:00UTC

in 1 hour

UTC: Tue, 10/27/2026, 10:00:00

Tue, 10/27/2026, 10:15:00UTC

in 2 hours

UTC: Tue, 10/27/2026, 10:15:00

Tue, 10/27/2026, 10:30:00UTC

in 2 hours

UTC: Tue, 10/27/2026, 10:30:00

Tue, 10/27/2026, 10:45:00UTC

in 2 hours

UTC: Tue, 10/27/2026, 10:45:00

Tue, 10/27/2026, 11:00:00UTC

in 2 hours

UTC: Tue, 10/27/2026, 11:00:00

🔒 100% Local
⚡ Fast Processing
🆓 Free Tool

Cron Use Cases

Linux cron scheduling
Kubernetes CronJob definitions
GitHub Actions workflow verification

Frequently Asked Questions

Q. How do I run a job every weekday at 9am?

Use the expression "0 9 * * 1-5".

Q. What happens with February 30th?

Cron schedulers generally skip invalid calendar dates.

Q. Is the 6-field Quartz format supported?

Yes, both standard 5-field and 6-field formats (including seconds) are supported.

Q. Can I preview executions in my local timezone?

Yes, the next executions are shown in your local timezone by default.

Q. Are Daylight Saving Time (DST) transitions handled?

Executions during DST transitions might be skipped or run twice depending on your specific cron daemon.

Cron Syntax Cheat Sheet

* * * * *
│ │ │ │ │
│ │ │ │ └── Day of Week (0 - 7) (Sunday=0 or 7)
│ │ │ └──── Month (1 - 12)
│ │ └────── Day of Month (1 - 31)
│ └──────── Hour (0 - 23)
└────────── Minute (0 - 59)
ExpressionMeaning
0 * * * *Every hour at minute 0
*/15 * * * *Every 15 minutes
0 9 * * 1-5At 09:00 on every day-of-week from Monday through Friday
0 0 * * 0At 00:00 on Sunday
0 0 1 * *At 00:00 on day-of-month 1
0 0 1 1 *At 00:00 on day-of-month 1 in January
0 0 * * 1#1At 00:00 on the first Monday of the month
0 0 L * *At 00:00 on the last day of the month
💡

Macros like @yearly, @monthly, @daily, @hourly, @reboot are also commonly supported.

Cron vs Alternative Schedulers

Choose the right tool for your infrastructure.

ToolEnvironmentPrecisionDistributedMonitoring
Unix cronLinux/UnixMinutesNoBasic
Windows Task SchedulerWindowsSecondsNoBasic
systemd timerLinuxSeconds/msNoExcellent
Kubernetes CronJobKubernetesMinutesYesGood
GitHub ActionsCI/CDMinutesYesExcellent
AWS EventBridgeAWS CloudMinutesYesExcellent
QuartzJava EcosystemSecondsYesGood
Cloudflare WorkersEdge CloudMinutesYesExcellent
✔

Use Unix cron for simple, single-server tasks.

✔

Use systemd timers for complex dependencies on Linux.

✔

Use Kubernetes CronJobs for containerized distributed workloads.

✔

Use Cloud providers (AWS, Cloudflare) for serverless scheduling.

✔

Use GitHub Actions for CI/CD and repository maintenance tasks.

Key Features

  • Real-time bidirectional parsing
  • Next 5+ execution time preview
  • Human-readable translation
  • 100% offline browser processing

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