TimerCron

Recurring timer driven by a cron expression.

Properties

Property	Type	Description
`Expression`	`string`	Cron expression (e.g., `"0 0 * * *"` for daily at midnight)
`Payload`	`any`	Data passed to the timer callback
`StartAt`	`DateTime`	Optional — delay first execution until this time

{
    Expression: '0 */6 * * *',   // Every 6 hours
    Payload: { jobType: 'sync' },
    StartAt: DateTime.now().plusHours(1)
}