Change the display of the clock in the taskbar

[Wideawake]

Change the display of the clock in the taskbar:

The clock in the taskbar can be changed to show not only the time, but also the date, or just the date, or nothing at all.
To show nothing:
HKLM\Software\Microsoft\Shell\TBOpt = 0 (DWORD decimal)
To show just the clock:
HKLM\Software\Microsoft\Shell\TBOpt = 1 (DWORD decimal)
To show just the date:
HKLM\Software\Microsoft\Shell\TBOpt = 2 (DWORD decimal)
To show both the date and the clock:
HKLM\Software\Microsoft\Shell\TBOpt = 3 (DWORD decimal)

Note 1: If you switch to the Analog clock display, the date will remain visible -through- the Analog clock
Note 2: Setting the clock to show 'nothing' will still keep the reserved space, showing the taskbar background, and obscure any icons that will shift to the right.
Note 3: Your date may get obscured by the space reserved for the OK/Close button in the top-right. You can fix this my adding spaces at the end of your 'Short Date Format'. See also the tweak on 'Change the Short Date Format'