The 3.1 version of World Clock Deluxe CSM for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The software lies within System Tools, more precisely General. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this software for Mac is MaBaSoft.
From the developer:
World Clock Deluxe for Control Strip is a powerful and easy-to-use time tool. It displays up to 24 clocks in the Control Strip, can show UTC and Internet Time, lets you assign labels and colors to clocks and allows you to add cities and time zones and calculate date and time conversions.
You may want to check out more software for Mac, such as World Clock Deluxe, World Clocks or World Clock Pro, which might be similar to World Clock Deluxe CSM.