Question

Using cron4j, one can set up a job to run in some time in a future

    Scheduler s = new Scheduler();
    s.schedule("5 10 * * *", job);
    s.start();

Using cron4j, can the job be scheduled to start “next Saturday”, or on “12/21/2012”?

Answer 1

Yes. For example:

0 0 21 12 *

This says run this at 12:00 AM on December 21st.

The Chron syntax does not finitely support a year setting, but if you set this job today, it would run the next time it crosses that date.

Note: The other answer suggests adding a year column. If you do include this, the behavior is not entirely predictable — it depends which chron implementation you’re using.