Microsoft Corporation confirmed on Friday that a bug exists in Windows 98 that could cause a problem with the system date if the machine reboots at a specific time. For the bug to occur, you have to reboot the machine during a specific second between 11:59 p.m. and 12:00 a.m. on December 31st of any year. This will cause Windows 98 to reset the date to two days ahead or one day behind the actual date.
Not exactly a huge problem, is it? Anyway, Microsoft says a fix is planned and they should something available soon.