The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
0'Clock is a beautiful, sleek Binary Coded Decimal (Powers of 2) clock.It's both nice to look at and can help you learn how to read binary clocks by showing an optional 24 hour clock beneath the binary counter.