Komarov Mobile (http://www.komarov.mobi/) has updated World Clock, their Mac OS X app that lets users convert one or multiple time zones with a simple flick or add events to their calendar with a single tap, to version 1.2.
The update features support for OS X Yosemite. It also provides users with: at-a-glance time data; an interactive widget for “Today’s View,” an updated look/feel; a faster way to add cities and time zones, an arrow identifying current location, and more.
World Clock works with Mac OS X 10.9 or higher. It costs US$4.99 and is available worldwide through the Mac App Store in the Utilities category.