A task runs from Thursday to Tuesday. Is that six days of work or four?
For a team working Monday through Friday, the answer is four. Yet this is exactly the kind of scheduling challenge Jira users face when their plans cannot properly account for working days, weekends, holidays, and individual availability.
The impact goes beyond task duration. Users report having to manually adjust capacity or estimates when someone takes leave, work around holidays when forecasting delivery dates, and correct auto-scheduled plans that treat non-working time as available. Some even maintain their plans in additional tools to get a more realistic schedule.
Gantt Suite for Jira provides the scheduling flexibility these scenarios require. You can define working days, exclude weekends and holidays, and account for individual resource availability whenever your project requires it.
When weekends change task duration
If a task is scheduled from Thursday to the following Tuesday, Jira can show a six-day duration even though a Monday-to-Friday team has only four working days in that period. Another user describes a similar case where a task running from July 6 to July 10 appears as five days instead of three because the weekend is included.
With Gantt Suite for Jira, you can configure the project's working schedule in the Main Chart Calendar. Define your working days and hours, for example, Monday through Friday, 08:00–16:00, and mark weekends as non-working. Gantt Suite then excludes non-working time when calculating task duration.
Learn how to configure calendars in Gantt Suite →
When holidays affect your delivery plan
A schedule also needs to account for exceptions to the normal working week. This becomes especially important for long-term planning around public holidays and company-wide days off.
For example, Jira users planning year-end deliverables describe difficulties when work extends into Christmas because their plans cannot properly reflect a week when teams will not be working. If a schedule assumes normal productivity during that period, forecasted delivery dates can become unrealistic.
In Gantt Suite, calendar overrides let you mark specific dates as non-working, for example, public holidays or company days off. You can also make a normally non-working date available for work when required.
When team members have different availability
A single project calendar does not always represent everyone working on the project. Vacations, different working hours, regional holidays, and other absences can directly affect when assigned work can be completed.
This is particularly important for capacity planning. Jira users describe capacity forecasts becoming inaccurate because planned vacations and other periods of individual unavailability cannot be properly reflected. Others need to plan large initiatives around long vacations already scheduled for key people.
Resource Calendars in Gantt Suite let you define individual working schedules when they differ from the project's Main Chart Calendar. You can configure a resource's working days and hours and add individual working or non-working exceptions.
When work is assigned to that resource, their calendar can be taken into account when scheduling the task.
When availability affects auto-scheduling
Ignoring non-working time becomes even more noticeable when a plan is automatically recalculated.
Users describe manually adjusting story points, changing sprint capacity when someone takes vacation, or creating placeholder issues to compensate for unavailable time.
With working and resource calendars in Gantt Suite, configured non-working time becomes part of the scheduling logic. When task dates are recalculated, the schedule can account for actual working time instead of assuming every day is available.
This is especially useful for dependent tasks: when one task moves, subsequent tasks can be rescheduled while respecting the configured working calendar.
Keep your project planning in Jira
When working calendars and resource availability cannot be reflected in a plan, teams look for workarounds. Jira users describe creating issues for annual leave, manually changing capacity, adding plugins, or maintaining roadmaps in separate planning tools.
Gantt Suite for Jira lets you handle these planning scenarios without moving your project planning outside Jira. Configure working days and hours when needed, add holidays and exceptions, and use Resource Calendars to reflect individual availability.
This gives you a project schedule based not only on what needs to happen and when, but also on when the team is actually available to do the work.
