Use 0,30 11 * * *
as suggested by Xiaopan Bao, but keep it as a polling job. That will check at those specific times, and queue a build if there have been changes. I'm not sure how different that is to */30 (maybe 0,30='at 0 and 30' versus */30='every 30 minutes starting at an arbitrary point') but that is what I use, and it does for me what you are after. Wilko -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.