I cannot get the CRON parameters correct to run a workflow at 9pm on weekdays only. Your input screen shows 6 parameters yet CRON only takes 5. I have tried endless combinations but they all fail validation. I even tried copy/pasting your samples in with the same failed validation.
You can use weekly tab to schedule the workflow, please see example below:
oops- yes i did not see that option… thank you… curious how to use the CRON option though… how would i accomplish the same thing using your CRON schedule ?
After save the task you can open it again and navigate to advanced tab. You should see CRON syntax
0 0 9 ? * 2,3,4,5,6
Also you can manually write something like
0 0 9 ? * 2-6