Change schedule of type 'blackout' or maintenance - add complex filter conditionIssue Unable to form complex dynamic date/time related scheduled entries like 'from the 22nd day to 08th workday of the next month'.ResolutionThis is not achievable Out of Box. Technically, the schedule entry does not have the ability to form script like expressions that would properly reflect complex statement. One of the challenges would be to determine a working day. It could be e.g, Monday to Friday for majority of countries, but for some other countries it could be Sunday to Thursday. Even, if the customer managed this using e.g. filter condition, it would become more complex to form patterns like 'From 3rd workday to the 15th workday.' This requires some script like formulation to determine what e.g. the 3rd workday is for August 2030. The scheduled entry for blackout or maintenance schedule does not facilitate to form such conditions through script. That is were the limitation is. You could also raise an enhancement request through the Idea Portal, located on NowSupport. You can find more information about the Idea Portal here. You'll want to review previously created ideas, to see if this idea already exists, and you can upvote the item.