Use case

As mentioned in #65730, there is a usability issue with the single-ring 24hr-clock TimePicker implementation. However, it was noted back then that Flutter follows the Material Design native Android Time Picker implementation which uses the single-ring design. See #65730 (comment)

In the latest Material Design native Android 24hr-clock Time Picker implementation, the single-ring implementation is now replaced with the more usable 2-ring design as referenced in the closed issue in material-components/material-components-android#1450 (comment)

Proposal

Replace Flutter's single-ring 24hr-clock TimePicker with the two-ring design—consistent with the latest Material Design Time Picker in native Android.