Accuracy in overall time estimation is a crucial skill required for project management, which helps anticipate the project duration and costs involved. If the project time estimation is not proper then it can lead to issues like over-estimation or under-estimation. Under-estimating a project is disturbing for all team members as it leads to an additional workload of the project, whereas in over-estimating the duration, the client becomes sceptical about your expertise and team productivity is hampered.