It is an arithmetic system the ancient Egyptians established for the division of the year. The year consisted of 13 months. the Nile flood in determining the beginning of the year, it is also the current calendar that regulates agriculture in Egypt in modern times.
Ancient Egyptian Calendar Facts
A solar calendar was developed by the ancient Egyptians. It depended on the solar cycle it divided the year into months. Then discovered the lunar year and divided the year into seasons, months, days, and hours.
The Egyptian calendar was one of the first calendars in history.
Egyptian Calendar System
The Egyptian calendar consisted of 13 months of a total number of 365 days. the last five days of the year match the birthdays of the five gods of ancient Egypt (Osiris, Isis, Horus, Seth, and Nephthys). They had only three seasons which were:
1-the Nile and agriculture which was New Year's day and the time of the flooding of the Nile. it was on July 19 and it was named Akhet.
2-The next season in which the crops began to emerge, was called Peret and started on November 16.
3-The last season named Shemu the harvest time began on March 17.
The last five days of the year which match the birthdays of the old Egypt gods were on July 14 to 18, days which were meant unlucky and dangerous.
Besides this calendar, the ancient Egyptians had a religious calendar that was defining the festivals and ceremonies it was related to the gods and temples. This calendar consisted of 29.5 days per month which made it more accurate according to the phases of agriculture and the astronomical cycle of the stars.