Download of BigClock 2.0 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software relates to Productivity Tools. The actual developer of this free software for Mac is Sandor Szatmari. We recommend checking the downloaded files with any free antivirus.
From the developer:
Big Clock is a simple application that displays a floating clock which can be made large enough to be easily seen from across the room. This is ideal for users who need to keep track of time at a glance while moving around at a distance from the computer's display. Big Clock's primary interface is a status item menu located in the menu bar. The clock's display can be configured via a preferences dialog.
You may want to check out more Mac applications, such as CoolBigClock or Big Clock, which might be similar to BigClock.