The ancient Egyptian calendar was split into twelve months of 30 days with an additional five days attached at the end of the year. The total number of days were exactly 365.

Since our tropical year is closer to 365.24 days, commentators have said that Egypts calendar wandered and got out of sync with the seasons. Ive got a question about this.

About when (what century approx) did the Egyptians get rid of this system for something more accurate? Any one know?

Thanks.