Attribute Macro cron 

#[cron]

Marks a function as a scheduled cron task.

Cron jobs run on a schedule, exactly once per scheduled time across the cluster.

Attributes

All attributes are specified inline within the macro:

• First argument: Cron schedule expression (required)
• timezone = "UTC" - Timezone for the schedule
• timeout = "1h" - Execution timeout
• catch_up - Run missed executions after downtime
• catch_up_limit = 10 - Maximum number of catch-up runs

Example

#[forge::cron("0 0 * * *", timezone = "America/New_York", timeout = "30m", catch_up)]
pub async fn daily_cleanup(ctx: &CronContext) -> Result<()> {
    // ...
}