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Chart start date / Chart end date - the dates define chart boundaries. In most cases, data outside this range is not visible, and chart can only be scrolled within this range.
These dates can be left blank. In this case, app will try to determine dates based on chart tasks. But this might be inconvenient when creating a chart since task dates aren’t yet defined and chart range would be too narrow.Task duration - defines how task duration is calculated, e.g. how long the task will be on Gantt chart.
There are two options:
1) Calculated based on start and end dates only
Task duration is calculated as task end date minus task start date. Default duration of one day will be set if start or end date aren’t provided. This option requires Task start field and Task end field (see above) to be configured. Otherwise error will be shown.
2) Calculated based on provided estimate, otherwise based on start and end dates
Task duration equals task estimate. Estimate comes from Jira’s standard time tracking field. If estimate is missing, task duration will be calculated as end date minus start date.
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