What is a standard 5-field cron format?

minute hour day month weekday. Example: */5 * * * * for every 5 minutes.

How can I test a cron expression quickly?

Open a cron parser tool, paste the expression, and verify the next 10 run times in the timezone you deploy with.

Need a cron expression that just works? Copy one below, open it in the cron parser and confirm exact next-run times in seconds.

Format

Standard 5-field cron: minute hour day month weekday

Every minute

* * * * *

Every 5 minutes

*/5 * * * *

Every hour

0 * * * *

Every day at 07:00

0 7 * * *

Weekdays at 09:30

30 9 * * 1-5

Every Sunday at 02:00

Some systems use 0 or 7 for Sunday.

0 2 * * 0

1st day of month at midnight

0 0 1 * *