Crontab every hour

0 * * * *

The cron expression 0 * * * * runs a task every hour. A crontab line has five fields: minute, hour, day of month, month and day of week. Copy the ready expression with the button above and paste it into your crontab.

Expression fields

Minute	Hour	Day of month	Month	Day of week
`0`	`*`	`*`	`*`	`*`
exactly 0	any	any	any	any

How often it runs

24 runs per day
1 run per hour
168 runs per week

Run times during the day: 00:00, 01:00, 02:00, 03:00, 04:00, 05:00, 06:00, 07:00, 08:00, 09:00, 10:00, 11:00, 12:00, 13:00, 14:00, 15:00, 16:00, 17:00, 18:00, 19:00, 20:00, 21:00, 22:00, 23:00

FAQ

How to add 0 * * * * to crontab?

Open your cron jobs with crontab -e and add the following line, then save the file (the job will run every hour):

0 * * * * /path/to/script.sh

What time does cron use?

Cron uses the server time. If the job is tied to an exact time, make sure the server timezone is set correctly.

Is there a shorthand for 0 * * * *?

Yes: @hourly. It is the same schedule as 0 * * * *. The common Linux cron implementations (cronie, Vixie cron) understand it, but not every scheduler does — in cloud services the full five-field form is the safer choice.

Build your own expression in the builder →