# MetricReport.IntervalEntry A metric entry that covers a specific time interval. ``` struct IntervalEntry ``` ## Discussion `IntervalEntry` contains all metric values for a given time interval. Access it through [`intervalEntries`](/documentation/MetricKit/MetricReport/intervalEntries). Use the convenience property on the collection to retrieve the entry with the full 24-hour aggregate: ```swift let entry = report.intervalEntries.fullDayEntry for result in entry.values { switch result { case .cpuTime(let metric): process(metric) @unknown default: break } } ``` When you enable state reporting, `intervalEntries` contains shorter sub-interval entries in addition to the full-day entry. Each `IntervalEntry` provides a `duration` but no start timestamp, so you can’t associate an entry with a specific time of day. To determine when the overall reporting period occurred, use `timeRange` on the parent [`MetricReport`](/documentation/MetricKit/MetricReport). ## Topics ### Interval details [`let duration: Measurement`](/documentation/MetricKit/MetricReport/IntervalEntry/duration) The duration of this collection interval. [`let states: [MetricManager.ReportedState]`](/documentation/MetricKit/MetricReport/IntervalEntry/states) All states that were active during this collection interval. ### Metric values [`let values: [MetricResult]`](/documentation/MetricKit/MetricReport/IntervalEntry/values) The metric values for this entry. ## Relationships ### Conforms To [`Sendable`](/documentation/Swift/Sendable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Decodable`](/documentation/Swift/Decodable) [`Encodable`](/documentation/Swift/Encodable) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)