Add three days skipping weekends automatically to a Date Picker

Use case

Add three days to a date picker from another date picker field of your choice.

🛠️ Configuration

Add the post function Update fields to the transition of your choice.

Target issue*

Select current issue.

Fields

Field*

Choose a date field to be updated, e.g. Date picker, Planned end date, Planned start date or Due date.

Value*

Select Set field value manually (Jira expression) and enter the following expression after replacing "nnnnn" in "issue?.customfield_nnnnn" with the ID of the source date picker field.

Bash

startDate = issue?.customfield_nnnnn != null ? new Date(issue?.customfield_nnnnn + "T00:00:00Z") : null;
if(startDate == null){return null}
else {
	daysAdded = 3;
	startDateWeekday = startDate.getDay() == 0 ? 7 : startDate.getDay();
	weekendsSkipped = (daysAdded / 5) - (daysAdded / 5) % 1;
	endDate = startDate.plusDays(daysAdded + (weekendsSkipped*2));
	endDateWeekday = endDate.getDay() == 0 ? 7 : endDate.getDay();
		if(startDateWeekday == 6 && endDateWeekday == 6) {return endDate.minusDays(1)}
        else if(startDateWeekday == 7 && endDateWeekday == 7) {return endDate.minusDays(2)}
        else if(startDateWeekday == 6 && endDateWeekday == 7) {return endDate.plusDays(1)}
        else if(startDateWeekday == 7 && endDateWeekday == 6) {return endDate}
        else if(startDateWeekday == 6) {return endDate.plusDays(1)}
        else if(startDateWeekday == 7) {return endDate.plusDays(0)}
        else if(endDateWeekday == 6) {return endDate.plusDays(2)}
        else if(endDateWeekday == 7) {return endDate.plusDays(2)}
        else if(startDateWeekday < endDateWeekday) {return endDate}
        else if(startDateWeekday == endDateWeekday) {return endDate}
        else if(startDateWeekday > endDateWeekday) {return endDate.plusDays(2)}      
        else {return null}
}

With minor modifications, you will be able to add a different number of days to any date skipping weekends by replacing the number 3 in the daysAdded variable with the desired number of days.

Use case	Workflow function	Parser functions
Set the due date based on the priority	Update fields	getMatchingValue()
Obtain the difference between two dates	Update fields
Assign an issue to the user who last commented on it	Update fields
Add three days skipping weekends automatically to a Date Picker	Update fields
Keep parent's priority in sync	Update fields
Set the assignee based on the issue type	Update fields	getMatchingValue()
Set the fix version to affects version when resolving an issue	Update fields
Use the app user to update non-editable fields	Update fields
Automatically add incident reporters to problem tickets	Update fields	append() fieldValue() linkedIssues() toStringList()
Copy labels of a sub-task to the parent issue upon closing	Update fields
Assign an issue to the project lead, if the issue is unassigned on creation	Update fields
Add watchers from another field	Update fields Transition issue	union() toStringList()
Add a sub-task's summary and key to the description of its parent	Update fields
Set a date field to a future date	Update fields	dateTimeToString()
Record an auditable timestamp of a Compliance Approval	Update fields	dateTimeToString()
Copy field values from epic to issues under it after creation	Update fields Transition issue	epic() issuesUnderEpic() filterByStatus()
Set a date field to the current date	Update fields	dateTimeToString()
Assign important issues to the project lead	Update fields
Set the priority to Highest if the 'Infrastructure' component is selected	Update fields
Background priority calculation	Update fields	avg()