From Einhugur Software:
The TimeControl is a REALbasic control plugin to create a Time-picker. The Control is displayed according to control panel time settings, or in exclusive 24 hour mode. The control uses Native Windows control on Windows systems and native Theme Rendering on MacOS X and Linux systems. The Plugin is supported on MacOS Classic, MacOS X PPC, MacOS X x86, Windows x86 and Linux systems.