What is the Cron expression for every 100 hours in Azure Function Timer trigger?

Question

I am trying to create a timer trigger which will run every 100 hours interval.I have tried implementing 0 0 */100 * * * but it is triggering it every day. I have very basic idea about cron expression but couldn't formulate the actual expression for the same.

Answer 1

100 hours == 4 days + 4 hours

Suppose the job starts to execute at 00:00 AM, then you can try 0 4 */4 * * which means 'At 04:00 on every 4th day-of-month'.