Data Type Duration (duration field: A type of field whose content is expressed as a duration of time. Examples include the Work, Duration, and Delay fields. A duration field includes the duration unit, such as hour, day, or week.)
Entry Type Calculated or entered (calculated or entered field: A field in which the value is determined by Project based on information in other fields. Information that you enter in the field yourself overrides calculated values.)
Description The Baseline Duration field shows the original span of time planned to complete a task.
How Calculated When you save a baseline, the baseline duration is copied from the task's total scheduled duration at that point in time.
Best Uses Add the Baseline Duration field to a task view when you want to compare your originally planned durations against the scheduled or actual duration for tasks.
Example You set a baseline for your project three months ago, and you want to compare the baseline durations for a number of tasks against the actual or current duration. You add the Baseline Duration and Actual Duration fields to the Task Sheet view to analyze your progress to date.
Remarks The Baseline Duration field contains "0 days" until you set a baseline for the project. You can set a baseline in the Set Baseline dialog box. You can save up to 11 different baselines.
You can use the Tracking Gantt view to see the baseline duration shown with baseline Gantt bars.