TimePickerHourFormat Inherits: Enum Defines the hour format for the TimePicker control. Properties H12 – A 12-hour clock with an AM/PM selector. H24 – A 24-hour clock without an AM/PM selector. SYSTEM – Respect the host platform setting. Properties# H12 = 'h12' class-attribute instance-attribute # A 12-hour clock with an AM/PM selector. H24 = 'h24' class-attribute instance-attribute # A 24-hour clock without an AM/PM selector. SYSTEM = 'system' class-attribute instance-attribute # Respect the host platform setting.