It seems like you've provided a block of text with various information about desktop clocks for Windows and Mac operating systems.

From what I understand, the key phrase you're interested in is 'DesktopClock3D 1.92 for mac instal free'. This suggests that you're looking for a free version of DesktopClock3D for your Mac device.

To help you further, here are some points about the text:

* There are multiple desktop clock software options mentioned:

+ Calendarscope: A full-featured calendar software for planning and scheduling.

+ Mechanical Clock 3D: A screensaver featuring a pendulum, metal clockface, and grinding gears.

+ Free Desktop Clock: A free program that displays the time on your home screen.

+ DesktopClock3D: A simple but beautiful 3D desktop clock with customizable fonts and themes.

* Some of these options are available for both Windows and Mac operating systems:

+ DesktopClock3D圆4.zip and DesktopClock3D圆4Installer.zip are mentioned for 64-bit Windows (圆4).

* There's also a mention of a portable version of DesktopClock3D being available in the download section.

If you're still looking for a free version of DesktopClock3D for your Mac device, I can try to help you find it. Alternatively, if you'd like more information on any of the other desktop clock options mentioned, feel free to ask!