Apple Watch now quietly tracks a health metric that most users miss: Time in Daylight. Introduced with iOS 17 in 2023, the feature leverages the watch’s ambient light sensor and activates automatically when the band is worn on watchOS 10. No extra app or settings are required in the daily routine.

Users can pull the metric from the Health app by opening the app, tapping the magnifying glass, and searching for “daylight.” The data dates back to June 2023, giving consumers years of records that reveal how much sunlight they actually receive each day in their daily lives and better health insights.

Spending time outdoors offers mental and physical benefits, yet many people underestimate how often they get sunlight. By quantifying this habit, the Apple Watch turns a simple environmental cue into actionable data, allowing users to credit themselves for non‑exercise wellness choices and monitor mood‑boosting exposure over a year long period.

Apple’s built‑in Time in Daylight metric underscores the company’s shift toward holistic health tracking. While the feature works out of the box, enthusiasts can pair it with the new Series 11 sold for as low as $299 on Amazon, giving a budget‑friendly option to capture long‑term daylight data for all users.