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Azure Functions cron expression: on the last Friday of every month at noon
To run a Azure Functions job on the last Friday of every month at noon, use:
0 0 12 * * 5At 12:00 UTC, on Fri.
0 0 12 * * 5 [ "$(date -d '+7 days' +\%m)" != "$(date +\%m)" ] && /path/to/jobYour 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, 01 Jan 2027, 12:00:00 |
| 2 | Fri, 08 Jan 2027, 12:00:00 |
| 3 | Fri, 15 Jan 2027, 12:00:00 |
| 4 | Fri, 22 Jan 2027, 12:00:00 |
| 5 | Fri, 29 Jan 2027, 12:00:00 |
| 6 | Fri, 05 Feb 2027, 12:00:00 |
On the last Friday of every month at noon in every dialect
| System | Expression |
|---|---|
| Azure Functions (this page) | 0 0 12 * * 5 |
| Quartz | 0 0 12 ? * 6L |
| Spring | 0 0 12 * * 5L |
| Crontab | 0 12 * * 5 |
| Kubernetes | 0 12 * * 5 |
| AWS EventBridge | 0 12 ? * 6L * |
| Jenkins | H 12 * * 5 |
| GitHub Actions | 0 12 * * 5 |
| node-cron | 0 12 * * 5L |
| Apache Airflow | 0 12 * * 5 |
| Google Cloud Scheduler | 0 12 * * 5 |
Need to translate a different expression? Use the cron converter.
Ready-to-use Azure Functions config
Drop this into your project. The expression is the one above.
[Function("MyTimer")]
public void Run([TimerTrigger("0 0 12 * * 5")] TimerInfo timer)
{
// ...
}WEBSITE_TIME_ZONE=Eastern Standard Time # Windows name; Linux uses America/New_York
# Without it, NCRONTAB runs in UTC.The Azure Functions fields, in order: second (0-59), minute (0-59), hour (0-23), day-of-month (1-31), month (1-12), day-of-week (0-6, 0 = Sunday).
Things to watch out for in Azure Functions
- Weekdays are numbered 0-6 with Sunday as 0, and English names such as Mon or Monday are accepted, case-insensitively.
- NCRONTAB has no L, W or # symbols. Run on a broader schedule and check the date inside the function.
- Azure Functions evaluates NCRONTAB in UTC unless the WEBSITE_TIME_ZONE app setting is set; with it, the schedule adjusts for daylight saving. The setting is not supported on Linux Consumption or Flex Consumption plans.
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 Azure Functions job on the last Friday of every month at noon?
Use 0 0 12 * * 5. At 12:00 UTC, on Fri. 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 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 Azure Functions use for this schedule?
Azure Functions evaluates NCRONTAB in UTC unless the WEBSITE_TIME_ZONE app setting is set; with it, the schedule adjusts for daylight saving. The setting is not supported on Linux Consumption or Flex Consumption plans.