function readOnly(count){ }
Starting November 20, the site will be set to read-only. On December 4, 2023,
forum discussions will move to the Trailblazer Community.
+ Start a Discussion

CRON Scheduling

I'm looking to schedule a process to run on the 1,8,12,16 days at 1AM in the months 3,6,9,12 every year.


I have the following CRON string:

0 0 1 1,8,12,16 3,6,9,12 ? *


It works, but it doesn't reschedule itself.  It simply finds the next date in the future, runs it and then doesn't re-schedule for the next.  


Any ideas?


try with this 


string str = '0 0 1 1-8-12-16 3-6-9-12 *';





It won't work.  It gives the following error:

Support for specifying both a day-of-week AND a day-of-month parameter is not implemented.


Also, doesn't the dash signify a range instead of specific day?