Sharp AM-400 Online Manual page 49

Setting the Date and Time
5
Enter a two-digit number for the month
("01" for January, "02" for February,
"12" for December, etc.).
Example: February
6
Enter the year (four digits).
Example: 2005
7
Enter a two-digit number for the hour
("00" to "23") and a two-digit number
for the minute ("00" to "59").
Example: 9:25
8
Press
ENTER
9
Press
46
to start the clock.
repeatedly to exit.
DATE 05-02-2005
The currently set time
appears (example):
TIME 00:00
05-FEB 09:25
2: OWN NUMBER