Setting time and date canon electronic calculater lc-64t

The instructions are in the manual.

The camera's clock battery has worn out. Unfortunately, on most Canon SD series, this battery is not user serviceable. Recommend contacting Canon to see if they'll replace it, hopefully at a reasonable cost. 1-800-OK-CANON

Switch on the cameraPress MENU at the back You will 2 icons. One for camera and other for tools. Select tools settings
Scroll down to Date & Time settings. Press Set/Function. Change the date and time as per our time zone. Press again Set/Function. For display of date Select camera icon and on the drop down menu select display. By pressing the function key select the date /date and time. Press Set. The camera is set. Whenever you view picture it will display the date and time

Hold down the time set key (M+ key) for 3 seconds. Then hit the date/time key. Enter in the correct date. Hit the time set key again to set. To set the time hit the date/time key twice to bring up the time.
Hope this helps.

Open the speed dial panels (3) locate DATA REGISTRATION button. Press data registration, then press SET button twice, this should get you to DATE and TIME setting....use the number keys to adjust same then press SET when finished. Press DATA REG. button to escape from user settings.

Open all 3 One-touch Speed Dialling panels.
press Data Registration. press Set.
USER SETTINGS press Set
DATE & TIME press Set
use numeric keypad to enter month/date/year and then time press Set
To exit, press Data Registration or Stop

Date and time stamp only works in one resolution mode. It's called "Postcard" resolution, and it's the one at 1600 x 1200 pixel width and height. Set your resolution first to Postcard, then set the Date/Time back to on.

First Remove the clear tape from the battery compartment on the bottom. Second take a paper clip and press and hold the reset button for 5 seconds. Then press the calendar/clock button. Next press and hold the time set button (M+/=) until the first number starts flashing. Type in the date and press time set (M+/=) until it stops flashing. Then press the calendar/clock button. Next press and hold the time set button (M+/=) until the first number starts flashing. Type in the time and press time set (M+/=) until it stops flashing.

Left the flap on the right hand side of the fax machine.
Select Data registration
use the down arrow
1. Data registration
SET
1. User Settings
SET
1. Date & Time
SET
Enter date or time
SET

This looks like the UK version of the Canon 730. Look in the manual but as I recall, Press data registration and then set scroll down to time settings and press set and scroll down to time and date and set. Enter new time and date and set. Press stop to goto standby