Timer Trigger¶

Schedule periodic jobs with cron expressions and safe idempotent processing.

flowchart LR
    A[Trigger] --> B[Function]
    B --> C[Binding or SDK]
    C --> D[Azure service]

Topic/Command Groups¶

Timer trigger¶

[Function("NightlyJob")]
public void NightlyJob([TimerTrigger("0 0 2 * * *")] TimerInfo timer)
{
}

Every 5 minutes heartbeat¶

[Function("Heartbeat")]
public void Heartbeat([TimerTrigger("0 */5 * * * *")] TimerInfo timer)
{
}

Time zone caveat (WEBSITE_TIME_ZONE)¶

• WEBSITE_TIME_ZONE is supported on Windows plans and on Linux Premium/Dedicated plans.
• WEBSITE_TIME_ZONE is not supported on Linux Consumption or Flex Consumption plans.

See Also¶

• Recipes Index
• .NET Language Guide
• Troubleshooting

Sources¶

• Azure Functions .NET isolated worker guide
• Azure Functions triggers and bindings