New moons and full moons do not occur on the same days of each month in the modern Western calendar.

"The year of my birth, by the modern calendar, would have been seven hundred and one, before the Common Era."

The modern Iranian calendar is based on his calculations.

This article uses the modern calendar to avoid confusion.

The glyphs even tell when he was born: Oct. 15, 625, as it would be on the modern calendar.

Now was the Air-turn 446 according to the modern calendar.

In the modern calendar this is determined in the following manner.

These days normally fall in September and October of the modern solar calendar.

As Walter had explained, it would be virtually impossible to match the date on the papyrus with a modern calendar.

This article is about the modern Assyrian calendar.