Clcok
Ahead By v.1.0.0.1
Ahead By utility allows a user to change the output format of the System Tray Clock. Standard format looks as HH:MM. This application allows controlling time format, showing calendar, changing text color and etc.
Memento v.2.6.3.71
Memento is a clock and a reminder service for Windows. I personally don't use reminder software because I tend to forget even that I have a program installed to remind me of things. How bad is that?