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node-cron cron expression: on the first Monday of every month at 9:00 AM
To run a node-cron job on the first Monday of every month at 9:00 AM, use:
0 9 1-7 * 1At 09:00 UTC, on the 1st, 2nd, 3rd, 4th, 5th, 6th and 7th of the month, and on Mon.
Your week at a glance
Upcoming runs
| # | Local | UTC | From 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.
- Monthly planning reports
- First-Monday-of-the-month reminders
- Monthly access reviews
First runs, as an example
Starting from 1 January 2027, evaluated in UTC:
| # | Date and time (UTC) |
|---|---|
| 1 | Mon, 04 Jan 2027, 09:00:00 |
| 2 | Mon, 01 Feb 2027, 09:00:00 |
| 3 | Mon, 01 Mar 2027, 09:00:00 |
| 4 | Mon, 05 Apr 2027, 09:00:00 |
| 5 | Mon, 03 May 2027, 09:00:00 |
| 6 | Mon, 07 Jun 2027, 09:00:00 |
On the first Monday of every month at 9:00 AM in every dialect
| System | Expression |
|---|---|
| node-cron (this page) | 0 9 1-7 * 1 |
| Quartz | 0 0 9 ? * 2#1 |
| Spring | 0 0 9 * * MON#1 |
| Crontab | 0 9 * * 1 |
| Kubernetes | 0 9 * * 1 |
| AWS EventBridge | 0 9 ? * 2#1 * |
| Jenkins | H 9 * * 1 |
| GitHub Actions | 0 9 * * 1 |
| Apache Airflow | 0 9 * * MON#1 |
| Azure Functions | 0 0 9 * * 1 |
| Google Cloud Scheduler | 0 9 * * 1 |
Need to translate a different expression? Use the cron converter.
Ready-to-use node-cron config
Drop this into your project. The expression is the one above.
import cron from 'node-cron';
cron.schedule('0 9 1-7 * 1', () => {
console.log('running a task');
}, { timezone: 'UTC' });The node-cron fields, in order: second (0-59), 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 node-cron
- Weekdays are 0-7 with Sunday as 0 or 7, and names such as MON-FRI are accepted.
- The current node-cron documentation lists L, W and # in the day fields; older releases may not have them. Because the day fields are ANDed, the first Monday is also 0 9 1-7 * 1.
- node-cron uses the server time zone unless you pass { timezone: "Asia/Kolkata" }. Its documentation advises timezone: "UTC" for jobs that must not skip or repeat when clocks change.
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 node-cron job on the first Monday of every month at 9:00 AM?
Use 0 9 1-7 * 1. At 09:00 UTC, on the 1st, 2nd, 3rd, 4th, 5th, 6th and 7th of the month, and on Mon.
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; Crontab: 0 9 * * 1. The table on this page lists every dialect.
Which time zone does node-cron use for this schedule?
node-cron uses the server time zone unless you pass { timezone: "Asia/Kolkata" }. Its documentation advises timezone: "UTC" for jobs that must not skip or repeat when clocks change.