CALCULATOR
Schedule Slack from Allowed and Required Time Calculator
Schedule Slack from Allowed and Required Time Calculator — change the supplied values to calculate schedule slack from allowed and required time.
Supplied elapsed durations; positive spare time, negative shortfall. No calendar or critical-path graph inference.
Accepted inputs: Allowed duration supplied: 0 to 10,000 hours; Required duration supplied: 0 to 10,000 hours.
How the calculation works
slack=allowed duration−required duration
Subtract estimated demand from allowed elapsed duration.
Worked example
With allowed duration supplied 48 hours, required duration supplied 36 hours, schedule slack from allowed and required time is 12 hours.
Assumptions and limits
Supplied elapsed durations; positive spare time, negative shortfall. No calendar or critical-path graph inference.