1. Log in to Talscale and go to the 'Projects' section.

2. Select a particular project for which duration has to be changed.

3. Go to 'Settings'.

4. Select 'General'.

5. Navigate to 'Project Duration' and change the duration of the project.

Note: The duration of the project can be changed as (hours: minutes).

6. Click on the 'Save Changes' button to save the changed duration of the project.