Duration
Quantity: Duration (use ISO 8601 duration format).
Data typeschema.org/Duration
Where Duration is used as a value
These properties expect a Duration: activityDuration, billingDuration, billingPeriod, cookTime, duration, estimatedFlightDuration, gracePeriod, jobDuration, leaseLength, performTime, prepTime, processingTime, repeatFrequency, termDuration, timeRequired, timeToComplete, totalTime, validFor.