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Crontab cron

Crontab cron expression: on the first Monday of every month at 9:00 AM

To run a Crontab job on the first Monday of every month at 9:00 AM, use:

0 9 * * 1

At 09:00 UTC, on Mon.

Crontab cannot express this exactly. The expression above fires more often than you want, so add a guard to the command so it only does the real work on the right day:
0 9 * * 1 [ "$(date +\%d)" -le 7 ] && /path/to/job

Your week at a glance
fewer more runs

Upcoming runs

#LocalUTCFrom now

Copy-ready code

Why use this schedule

A monthly meeting or review that always lands on the first Monday. Calendars make this easy, but cron has no plain "first Monday" rule, so how you express it depends on the system.

First runs, as an example

Starting from 1 January 2027, evaluated in UTC:

#Date and time (UTC)
1Mon, 04 Jan 2027, 09:00:00
2Mon, 11 Jan 2027, 09:00:00
3Mon, 18 Jan 2027, 09:00:00
4Mon, 25 Jan 2027, 09:00:00
5Mon, 01 Feb 2027, 09:00:00
6Mon, 08 Feb 2027, 09:00:00

On the first Monday of every month at 9:00 AM in every dialect

SystemExpression
Crontab (this page)0 9 * * 1
Quartz0 0 9 ? * 2#1
Spring0 0 9 * * MON#1
Kubernetes0 9 * * 1
AWS EventBridge0 9 ? * 2#1 *
JenkinsH 9 * * 1
GitHub Actions0 9 * * 1
node-cron0 9 1-7 * 1
Apache Airflow0 9 * * MON#1
Azure Functions0 0 9 * * 1
Google Cloud Scheduler0 9 * * 1

Need to translate a different expression? Use the cron converter.

Ready-to-use Crontab config

Drop this into your project. The expression is the one above.

crontab line
0 9 * * 1 /path/to/command >> /var/log/job.log 2>&1

The Crontab fields, in order: minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-7, 0 and 7 = Sunday).

Things to watch out for in Crontab

The common mistake with this schedule

Writing 0 9 1-7 * 1 in classic cron does not mean "first Monday". Cron ORs the two day fields, so it fires on days 1-7 and every Monday. Use a guard in the script instead.

Frequently asked questions

How do I run a Crontab job on the first Monday of every month at 9:00 AM?

Use 0 9 * * 1. At 09:00 UTC, on Mon. This dialect has no native rule for it, so the job must also check the date (see the guard command above).

What is the on the first Monday of every month at 9:00 AM cron expression in other systems?

Quartz: 0 0 9 ? * 2#1; Spring: 0 0 9 * * MON#1; Kubernetes: 0 9 * * 1. The table on this page lists every dialect.

Which time zone does Crontab use for this schedule?

Cron runs in the server's local time zone. Check it with the date command, or put CRON_TZ=Asia/Kolkata above the line on cronie-based systems.

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