What feature can track the amount of time that a task has been open, to ensure that tasks are completed within an allotted time?

Task Escalation Clock is not a standard ServiceNow feature name for this capability.

Business Time Remaining is a component or calculation within an SLA, not the overarching feature itself.

An Inactivity Monitor tracks when a record has not been updated for a certain period, which is different from tracking total open time against a target.

Service Level Agreements (SLAs) are a core ServiceNow feature used to define the expected performance targets for tasks, such as response and resolution times. They track the duration a task remains open and trigger actions or escalations if these targets are at risk of being breached or are actually breached, thus ensuring tasks are completed within allotted times.

Response Time Clock is a specific metric often tracked by an SLA, but not the overall feature.