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Azure Functions cron expression: every 10 seconds
To run a Azure Functions job every 10 seconds, use:
*/10 * * * * *Every 10 seconds.
Your week at a glance
Upcoming runs
| # | Local | UTC | From now |
|---|
Copy-ready code
Why use this schedule
Sub-minute scheduling is only possible in dialects with a seconds field. In Java apps that means Quartz or Spring; node-cron and Azure Functions timers have one too.
- Fast polling of an in-process queue
- Short-lived monitoring loops
- Demo and test schedulers
First runs, as an example
Starting from 1 January 2027, evaluated in UTC:
| # | Date and time (UTC) |
|---|---|
| 1 | Fri, 01 Jan 2027, 00:00:00 |
| 2 | Fri, 01 Jan 2027, 00:00:10 |
| 3 | Fri, 01 Jan 2027, 00:00:20 |
| 4 | Fri, 01 Jan 2027, 00:00:30 |
| 5 | Fri, 01 Jan 2027, 00:00:40 |
| 6 | Fri, 01 Jan 2027, 00:00:50 |
Every 10 seconds in every dialect
| System | Expression |
|---|---|
| Azure Functions (this page) | */10 * * * * * |
| Quartz | 0/10 * * * * ? |
| Spring | */10 * * * * * |
| node-cron | */10 * * * * * |
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("*/10 * * * * *")] 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
- Timers support second precision. Schedules that fire more than once a minute are not monitored by default (UseMonitor defaults to false).
- NCRONTAB has a leading seconds field: 0 */5 * * * * runs every five minutes at second 0, while */5 * * * * * runs every five seconds.
- 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
Kubernetes, GitHub Actions, Jenkins, Airflow, Google Cloud Scheduler and EventBridge cannot go below one minute. For those, run a long-lived process with its own loop.
Frequently asked questions
How do I run a Azure Functions job every 10 seconds?
Use */10 * * * * *. Every 10 seconds.
What is the every 10 seconds cron expression in other systems?
Quartz: 0/10 * * * * ?; Spring: */10 * * * * *; node-cron: */10 * * * * *. 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.