Texas Instruments TI-89 Titanium Short User Manual page 34

Press
Scroll down to October
and press ¸
D 1 9
¸ ¸
Turning off the clock
From the Apps desktop, open the CLOCK dialog box and select OFF in the
Clock field.
Example: Turn off the clock.
Press
Use cursor keys to highlight
28
Result
Revised time and date
Result
Clock on
Getting Started