I have a system that does not have windows on it and is running DOS 6.22. The date and time will not maintain which seems to be common according to the comments I have been reading.
The system is on a small network so I used the net time COMMAND to get the time from a PC running windows 2000. I put this into a file that is CALLED during the reboot sequence but it is not rebooted often so the date and time are always wrong.

Does anyone know if you can add the "at" command to standard DOS 6.22 so I can set up a batch file with the net time command and call it with the at command every day?

Thanks for any assistance. Welcome to the CH forums.

Have you tried solving the date/time problem by replacing the cmos battery?

Thank you for your reply.

No I have not tried replacing the CMOS battery yet. I started to try and find some information on line and most of it said that the battery would not fix the issue.

I am by no means an expert but the clock will show a date and time ahead of the current date and time. I READ a few things that said the clock would just remain constant if the battery was dead is this true?

Thanksdead battery usually means Jan 1st 1980 12:00 AM at cold start.

If the battery does not fix this then....

Some older NON-Y2K ( Non-Year 2000 ) compliant systems had this issue where the year would be like 2054 when the BIOS could not support the true year output.

I had a 486DX4-100Mhz system that did this. You would set the date back to correct date and upon reboot, right back to 2054 or some year that was insane like that.

I remember AOL not liking this incorrect Year, and upon forcing it back to 2000 or 2001 in Windows 98 SE it was fine until reboot, when it would go back to 2054 or a year like that.

BIOS was not Y2K compliant on the Dragon 486 Motherboard.

Ended up having to install a 3rd party piece of software that would correct the date/time issue for this motherboard. Cant remember what it was called since I got rid of that system in 2001... gave to neighbor for playing DOS games.

Is your CPU older than a Pentium 133 Mhz? Most Pentium systems supported Y2K roll over, some 486 systems did, but most didnt, and just about all 386 systems would not roll over, and all 286 and before systems I believe would not go to 2000 due to the 2 digit year from 99 to 00 being 1900 instead of 2000.