The Assyrian calendar is a lunar-based calendar that begins in the year 4750 BC, inspired by an estimate of the date of the first temple at Assur, notably based on a series of articles published in the Assyrian magazine Gilgamesh, edited by the brothers Addi and Jean Alkhas and Nimrod Simono. The year begins with the first sight of Spring. The Assyrian new year is still celebrated every year with festivals and gatherings. As of April 1, 2012, it is the Assyrian year of 6762.
The intercalary month, added when the new moon following Adaar predates vernal equinox, is called Ve-Adad.