"entered the numbers into his spreadsheet: 13 x 29.53 gave him a 383.89-day period of time. Next he multiplied the 383.89 days times the 490 periods of time for a total of 188,106.1 days or 515.02 years. Five-hundred-and-fifteen years from the "command to restore and build Jerusalem" in 520 BC brought them to the winter of 5 BC. Looking at Rachael, he smiled. "Assuming that is what was intended by the first part of verse 25, it looks like it gives us the year 5 BC. Many chronologists believe 4 BC was the date for the birth of Christ--we're awfully close to that."