This clock makes your menubar display completely customisable. Only drawback is the preferences assume you are a bit of a unix geek and know the unix date/time formatting commands. If you are not, open the Terminal app in the Utilities folder and type in "man strftime" and return and the unix time format commands will start to display. Maybe I should deduct one star for not providing a read me file to tell you that, but I haven't because its freeware. Excellent.