Cheat Sheets · Cron Cheat Sheet · Cron on the 15th of Every Month — Crontab Example

Cron on the 15th of Every Month — Crontab Example

0 0 15 * *

Runs at 00:00 (midnight) on the 15th day of every month.

Field by field

Field	Value	Meaning
`Minute`	`0`	At minute 0
`Hour`	`0`	At midnight (00:00)
`Day of month`	`15`	On the 15th day
`Month`	`*`	Every month
`Day of week`	`*`	Any day of the week

Mid-month billing cycles, bi-weekly payroll reconciliations, and intermediate audits frequently anchor on the 15th day of the month. Keep day-of-week wildcarded (*) to avoid the union trap.

0 0 15 * * /usr/local/bin/midmonth-payroll.sh

Related schedules

0 0 1 * * 1st day of the month 59 23 L * * Last day of the month 0 0 * * * Daily at midnight

FAQ

Can I run on the 1st and the 15th?
Yes: use a comma list in the day-of-month field: 0 0 1,15 * *.

What if the 15th falls on a weekend?
Standard cron runs regardless of whether it is a weekend. If you want the nearest weekday, add a check inside your shell script.

How do I run at noon on the 15th?
Set the hour to 12: 0 12 15 * *.

Stop memorizing — build it interactively

Try this schedule in the Cron Editor

Full reference: Cron Cheat Sheet