How to Input a Duration ?

Inputting a duration is quite straight forward: just select the appropriate cell and input the desired number of days. The gantt chart will be updated automatically. The Gantt Chart will also consider which working days you selected: Monday to Friday or Monday to Sunday.

The end date is automatically calculated via a formula which uses:

  • The Starting date
  • The Duration
  • The type of calculation (Working Days, which days are weekend days)

In case you would like to build the schedule in retro-planning (starting from the end and building the schedule backward) you can opt for negative duration:

  • Input the last day of the task in the cell « Start Date »
  • Input the desired duration with minus symbol : for example -5

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