Clock, St. Stephen's Tower or now Elizabeth Tower

The clock in Elizabeth Tower (sometimes called Big Ben after the bell).

Time is a critical constraint for project management. Time management is one of PMI's ten knowledge areas.

Project management requires estimating or tracking the amount of time that project activities will take. By comparing the time it actually takes to the estimated time as the project progresses, problems with delays can be identified and remedied early before they become more serious.

The PMI processes in the time management knowledge area are

  1. Plan schedule management
  2. Define activities
  3. Sequence activities
  4. Estimate activity resources
  5. Estimate activity durations
  6. Develop schedule
  7. Control schedule

Related: Estimate activity durations, Control schedule, schedule, triple constraint