Right-click the task bar clock, then you will find the following menu.

In TClock Light, you can customize menu items by editing tcmenu*.txt in "lang" folder. Please refer to Format of tcmenu*.txt.
Opens "Adjust Date/Time" dialog of Windows.
All the windows on desktop will be minimized.
In case of Windows NT4 , 2000, XP, it launches the Task Manager.
Opens "Taskbar Properties" dialog of Windows.
Opens "Timer" dialog of tctimer.exe.
Opens "Synchronization Settings" dialog of tcsntp.exe.
Connects the specified NTP server and adjusts time. You have to set up "Synchronization Settings" in advance.
Opens "TClock Properties" dialog.
Opens TClock Light help page on WWW.
Opens "About" dialog.
Exits TClock Light and returns the task bar clock to its original status.