I occasionally use and old version of Excel (version 5a) which dates to the early 1990s. It works fine for most of my needs but I have recently encountered a possible error in the way it reads the computer's clock. I am currently using this program on a Windows XP computer.

When I use the NOW() function, it returns a time about 2 hours and 13 minutes early. When I use a similar function in Microsoft Works it returns the time correctly.

Example:
in Excel NOW() = 40482.6890
in Works NOW() = 40482.7737

Is this a known issue with Excel 5a or a hardware compatablility issue with the XP operating system?