Description: The time scale values on the battery usage curve in macOS 27 are displayed incorrectly. The screenshot timestamp is 14:39:11, October 20. Under the "Last 24 Hours" tab for Battery Level and Screen On Time charts, the timeline shows usage extending past 21:00 on October 20. This timestamp does not match the actual current time. It appears the timeline axis failed to shift correctly as time progresses.
For comparison: a reference screenshot captured on macOS 26 at 09:30, August 8. Its battery usage timeline rendered correctly. The bottom time span covered August 7 to August 8, which is the expected and proper display behavior.
This bug only exists in macOS 27’s battery usage chart. The older macOS 26 implementation works correctly.
Device: MacBook Air M5
macOS version: macOS 27.2 RC