It’s happened a couple of times in the last few months, that on one of our Jenkins instances, all jobs that are run by cron stop being triggered. Restarting the Jenkins instance fixes it so that cron works again for all jobs. But we don’t want it to keep happening that cron stops working.

I am working on a Jenkins pipeline and I wish to have it run after every 85day at around 9 am. I have the below snippet in my Jenkins pipeline, but i’m not so sure whether it is correct or not given that 85 is above the maximum number of days in a month: