Toshiba 400CS User Manual page 79

Subtest 03 Real Time Carry
CAUTION: When this subtest is executed, the current date and time are
erased.
This subtest checks the real time clock increments, making sure the date and
time are displayed in the following format:
Pressing Enter displays the following:
PRESS [Enter] KEY TO EXIT TEST
Press Ctrl + Break to exit.
3-30
Current date : 12-31-1994
Current time : 23:59:58
Current date : 01-01-1995
Current time : 00:00:00
400 Series