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AWS EventBridge cron expression: on the last Friday of every month at noon
To run a AWS EventBridge job on the last Friday of every month at noon, use:
0 12 ? * 6L *At 12:00 UTC, on the last Fri.
Your week at a glance
Upcoming runs
| # | Local | UTC | From now |
|---|
Copy-ready code
Why use this schedule
Month-end releases or reviews that happen on the last Friday. Because months have four or five Fridays, you cannot hard-code a single day number, and each system expresses the rule differently.
- Last-Friday release freezes
- Monthly all-hands reports
- Month-end clean-up days
First runs, as an example
Starting from 1 January 2027, evaluated in UTC:
| # | Date and time (UTC) |
|---|---|
| 1 | Fri, 29 Jan 2027, 12:00:00 |
| 2 | Fri, 26 Feb 2027, 12:00:00 |
| 3 | Fri, 26 Mar 2027, 12:00:00 |
| 4 | Fri, 30 Apr 2027, 12:00:00 |
| 5 | Fri, 28 May 2027, 12:00:00 |
| 6 | Fri, 25 Jun 2027, 12:00:00 |
On the last Friday of every month at noon in every dialect
| System | Expression |
|---|---|
| AWS EventBridge (this page) | 0 12 ? * 6L * |
| Quartz | 0 0 12 ? * 6L |
| Spring | 0 0 12 * * 5L |
| Crontab | 0 12 * * 5 |
| Kubernetes | 0 12 * * 5 |
| Jenkins | H 12 * * 5 |
| GitHub Actions | 0 12 * * 5 |
| node-cron | 0 12 * * 5L |
| Apache Airflow | 0 12 * * 5 |
| Azure Functions | 0 0 12 * * 5 |
| Google Cloud Scheduler | 0 12 * * 5 |
Need to translate a different expression? Use the cron converter.
Ready-to-use AWS EventBridge config
Drop this into your project. The expression is the one above.
cron(0 12 ? * 6L *)aws events put-rule --name my-rule --schedule-expression "cron(0 12 ? * 6L *)"The AWS EventBridge fields, in order: minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (1-7, 1 = Sunday), year (1970-2199, required).
Things to watch out for in AWS EventBridge
- Weekdays are 1-7 with Sunday as 1, or use SUN-SAT names. Monday to Friday is 2-6.
- EventBridge supports L, W and #, so month-end and nth-weekday rules work without a guard.
- EventBridge rules always run in UTC. If you want a local time zone with DST support, use EventBridge Scheduler instead.
The common mistake with this schedule
The L suffix is Quartz and Spring only. Quartz counts Friday as 6, so it is 6L, while Spring counts Friday as 5, so it is 5L.
Frequently asked questions
How do I run a AWS EventBridge job on the last Friday of every month at noon?
Use 0 12 ? * 6L *. At 12:00 UTC, on the last Fri.
What is the on the last Friday of every month at noon cron expression in other systems?
Quartz: 0 0 12 ? * 6L; Spring: 0 0 12 * * 5L; Crontab: 0 12 * * 5. The table on this page lists every dialect.
Which time zone does AWS EventBridge use for this schedule?
EventBridge rules always run in UTC. If you want a local time zone with DST support, use EventBridge Scheduler instead.