Texas Instruments TITANIUM TI-89 - Manual (Page 47)

Getting Started 47
Turning off the clock Turning off the clock Turning off the clock 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 Result
Use cursor keys to highlight
Press Result
Revised time and date
Clock on