Unlike the Hijra calendar, which is lunar, the ancient Egyptian calendar is solar, like the Gregorian. It has 365 days that are roughly divided into three seasons, each of which has four months.

Ancient Egyptians may have chronicled the flickering of a star known as "the Demon," perhaps the earliest known record of a variable star, astronomers suggest. The ancient Egyptians wrote calendars ...

In 1904 Eduard Meyer stated that the Egyptian calendar was invented about 4231 B. C., and some of the principal Egyptologists of his generation adopted this theory with minor modifications. In recent ...

THE calendar of the ancient Egyptians was one of the earliest experiments in calendar making, and it was one of the most enduring. It was still in use at the beginning of the Christian era much as it ...