How narrowly Nelson missed the French fleet at Egypt

How long did Nelson miss the French fleet by when he first reached Egypt?

Accounts differ between hours and days, but he missed them by only a short interval.

Surviving accounts do not support an exact interval between Nelson's departure and the French arrival at Egypt. Some place it in hours and others in days. The disagreement changes the precise chronology, although the interval was clearly short. The opposing fleets passed through the same area close enough together for Nelson's westward turn to have major consequences.