>Now, tonight I faced a situation where an error was returned at that line. After a few investigations, I finally found that the transaction started in the last second of the day and ended in the first second of the new day. So, I added a condition to detect if the SECONDS() is greater than gnTime in order to avoid that. But, the weird situation is that this is unlikely to happen as it requires a lot of precision. I had it about 4 times in the first 6 months of 2001. <s>

For another possible alternative, check out the Windows API function:

GetTickCount()

which returns the number of ticks/milliseconds since boot time.