HP 41CX new trick (at least to me)

[Jake Schwartz]

(05-27-2014 02:52 PM)Visu Wrote:  Just by pure coincidence, I found a quick sequence key that turned the clock on on my 41CX.

shift / ON

Undocumented to my knowledge but I may have not RTFM properly 3 decades ago...

In the August 1983 edition of the 41CX Manual Volume 1 (Basic Operation), Section 6 ("The Time Functions"), page 61:

Under "The Clock":

Subheading is "Displaying the Clock ([shift] ON, [CLOCK])"