Here are two applications I have recently made. The first one, PostX-Calendar is a QT application, which will certainly be featured in the future PostX Gnu/Linux 0.4 release coming in late 2016. The second one, is a basic time shower: “Current Time”, which does what is says and displays the current time.
Current-Time
PostX-Calendar
Download Current-Time and PostX-Calendar combined zip archive file: Calendar_Time.zip