The current Assyrian date is MAPP_ASSYRIAN_DATE.

In the old Assyrian Calendar the Assyrian year began on the Vernal Equinox, which falls on March 20/21 in the Gregorian Calendar (the Vernal Equinox begins at a slightly different time each year).

The first month of the Assyrian year is Neesan (April).

The epoch for the Assyrian year is 4750 B.C., which is the date of the building of the first temple of Ashur, in the city of Ashur (present-day North Iraq).

In the Gregorian calendar, the Assyrian year is 4750 + the Gregorian Year. Example: 4750 + 2012 A.D. = 6762 Assyrian Year (A.Y.).

This is true if the date is after April 1, before that the year is one less (i.e., 6761). This is because the Assyrian year begins on April 1. For modern Assyrians, April first is assumed to mark the beginning of the new year.