Quartz Cron expression :Run every 15 days ie twice in a month

Question

I want to set the scheduler with a quartz cron expression which will trigger every 15 days ,for example 1st and 15th of every month.The 0 15 10 15 * ? is triggering only on

Answer 1

0 0 1,15 * * “At 00:00 on day-of-month 1 and 15.”

0 0 1,15 1 * “At 00:00 on day-of-month 1 and 15 in January.”

0 0 1,15 1 6 “At 00:00 on day-of-month 1 and 15 and on Saturday in January.”

Answer 2

I have tested this and the following expression works fine

        "0 0 0 1,15 * ?"

the 1,15 statement fires triggers on 1st and 15th of every month at 00:00 hours. You can change the first three zeroes to fire them at a particular time you want.

the 1st zero -> seconds

the 2nd zero -> minutes

the 3rd zero -> hours

Answer 3

You just need to append 1 with a comma to your expression at 'Day of Month' block.

Rest is fine !

0 15 10 1,15 * ?

This will schedule to run every 1st and 15th day of the month and 10:15 am.

Answer 4

The following also works fine, it executes your command on the 15th and the 30th at 02:00 AM of every month:

0 2 */15 * * <yourCommand>