Which timezone does cron use?

The scheduler decides, which is commonly UTC on a server. Schedulers such as Kubernetes CronJobs take an explicit time zone, so set it there rather than assuming.

How do I express the last day of the month?

Use a capital L in the day-of-month field. Support varies by scheduler, so check yours before relying on it.

Does the order of day-of-month and day-of-week matter?

When both are restricted, most schedulers run on a day that matches either field. Setting one to an asterisk makes the rule unambiguous.

Cron Expression Generator

Build a cron expression from schedule choices and see a plain-English description with the next five run times, ready to paste into crontab.

A cron expression is five fields that tell a scheduler when to run a job: minute, hour, day of month, month, and day of week. This generator builds one from plain choices and shows when it will next fire.

Minute Hour Day of month Month Day of week

Pick a schedule above.

Crontab line

Breakdown

Next runs

Questions about cron expression generator

Which timezone does cron use?: The scheduler decides, which is commonly UTC on a server. Schedulers such as Kubernetes CronJobs take an explicit time zone, so set it there rather than assuming.
How do I express the last day of the month?: Use a capital L in the day-of-month field. Support varies by scheduler, so check yours before relying on it.
Does the order of day-of-month and day-of-week matter?: When both are restricted, most schedulers run on a day that matches either field. Setting one to an asterisk makes the rule unambiguous.

Cron Expression Generator

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Questions about cron expression generator

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Cron Expression Generator

Questions about cron expression generator

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