ShareYourGroupShareYourGroupCron Helper

Cron expression for every 10 minutes

Every 10 minutes.

Five fields for Linux, GitHub Actions and Kubernetes (minute hour day month weekday). Six or seven for Quartz. Nothing you type leaves your device.

What it means and when to use it

Ten minutes suits jobs that are a little heavy for five-minute polling: pulling a report from an API with a rate limit, rebuilding a small index, copying new files to another server, or sending a "still alive" ping to a monitoring service. It gives six runs an hour and 144 a day, which is easy to read in a log.

Watch out for this

Many people start every job at minute 0, so a schedule on minutes 0, 10, 20 meets the same crowd that starts at the top of every hour. On a shared server that can mean ten jobs waking at once. If exact alignment does not matter, move the whole pattern by a few minutes with 3-59/10, which fires at 3, 13, 23, 33, 43 and 53. Remember the last gap is then 10 minutes again, not shorter, because a step never wraps into the next hour.

What each field says

FieldWrittenMeans
Minute*/100, 10, 20, 30, 40, 50
Hour*every hour
Day of month*every day of the month
Month*every month
Day of week*every day of the week

An example of the next runs

If it were Friday 13 November 2026 at 10:20 UTC, the next six runs would be these. Times are shown in UTC and in India time (UTC+5:30).

UTCIndia time
Fri 13 Nov, 10:30Fri 13 Nov, 16:00
Fri 13 Nov, 10:40Fri 13 Nov, 16:10
Fri 13 Nov, 10:50Fri 13 Nov, 16:20
Fri 13 Nov, 11:00Fri 13 Nov, 16:30
Fri 13 Nov, 11:10Fri 13 Nov, 16:40
Fri 13 Nov, 11:20Fri 13 Nov, 16:50

The same schedule in other places

Quartz

Quartz has a seconds field in front, uses ? in one day field, and counts Sunday as 1:

0 */10 * * * ?

GitHub Actions

Scheduled workflows run in UTC unless you add a time zone. In the workflow file:

on:
  schedule:
    - cron: '*/10 * * * *'

Kubernetes CronJob

In a CronJob manifest the schedule goes in spec.schedule. Without spec.timeZone, it is read in the time zone of the cluster's controller:

spec:
  schedule: "*/10 * * * *"
  timeZone: "Etc/UTC"

A crontab line to copy

The command is made up. Replace it with your own and use full paths:

*/10 * * * * cd /srv/app && ./refresh-report.sh >> /var/log/refresh.log 2>&1

Questions

What is the difference between */10 and 0,10,20,30,40,50?

None for cron: both give the same six minutes. The step form is shorter and harder to mistype.

This is an independent guide and tool. It is not connected with crontab.guru, Quartz, GitHub, Kubernetes, Spring or the Linux projects named here. Product names belong to their owners.