System Doesn't Save Time and Date Changes (67943)
The information in this article applies to:
• Microsoft MS-DOS operating system 3.21
• Microsoft MS-DOS operating system 3.3
• Microsoft MS-DOS operating system 3.3a
• Microsoft MS-DOS operating system 4.0
• Microsoft MS-DOS operating system 4.01
• Microsoft MS-DOS operating system 5.0
• Microsoft MS-DOS operating system 5.0a
• Microsoft MS-DOS operating system 6.0
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.21
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q67943
SYMPTOMS
You use the MS-DOS TIME and DATE commands to change the time and date
on your system, but the system time and date are not saved when you
reboot.
CAUSE
This error occurs if you are using a version of MS-DOS earlier than 3.3.
Versions of MS-DOS earlier than version 3.3 do not update the CMOS
time/date chip.
RESOLUTION
If you are using a version of MS-DOS earlier than 3.3, you can use the CMOS
setup utility provided by the computer manufacturer to change CMOS
settings.
MORE INFORMATION
Only AT-class machines store the time/date information in standard
CMOS memory. XT-class machines do not have a built-in mechanism for
storing the time and date. Manufacturers of XT-class machines
sometimes add a clock/calendar chip to their systems. MS-DOS does not
recognize this hardware unless the system is running a version of
MS-DOS that has been modified by the manufacturer to work with their
hardware.
If an AT-class system running MS-DOS 3.3 or later continually loses the
time and date, the battery that powers the CMOS memory may need to be
replaced.
| Modification Type: |
Major |
Last Reviewed: |
5/12/2003 |
| Keywords: |
KB67943 |
|