原库描述：Change how the 24h mode (am/pm) should be determined, by device settings or by locale. {'locale', 'device'} (android only, default: 'device') 不支持原因：HarmonyOS中[TimePicker](https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V3/ts-basic-components-timepicker-0000001281480698-V3)、[TimePickerDialog](https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/ts-methods-timepicker-dialog-V5)、[DatePickerDialog](https://developer.huawei.com/consumer/cn/doc/harmonyos-references-V5/ts-methods-datepicker-dialog-V5)组件均不支持此属性。
原库描述：Change how the 24h mode (am/pm) should be determined, by device settings or by locale. {'locale', 'device'} (android only, default: 'device')
不支持原因：HarmonyOS中TimePicker、TimePickerDialog、DatePickerDialog组件均不支持此属性。